4959945 has 12 divisors (see below), whose sum is σ = 8597316. Its totient is φ = 2645280.

The previous prime is 4959923. The next prime is 4959947. The reversal of 4959945 is 5499594.

It can be written as a sum of positive squares in 2 ways, for example, as 1192464 + 3767481 = 1092^2 + 1941^2 .

It is not a de Polignac number, because 4959945 - 2¹⁵ = 4927177 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45), and also a Moran number because the ratio is a prime number: 110221 = 4959945 / (4 + 9 + 5 + 9 + 9 + 4 + 5).

It is a self number, because there is not a number n which added to its sum of digits gives 4959945.

It is not an unprimeable number, because it can be changed into a prime (4959947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 55066 + ... + 55155.

It is an arithmetic number, because the mean of its divisors is an integer number (716443).

Almost surely, 2^4959945 is an apocalyptic number.

4959945 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

4959945 is a deficient number, since it is larger than the sum of its proper divisors (3637371).

4959945 is a wasteful number, since it uses less digits than its factorization.

4959945 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110232 (or 110229 counting only the distinct ones).

The product of its digits is 291600, while the sum is 45.

The square root of 4959945 is about 2227.0933972333. The cubic root of 4959945 is about 170.5397493057.

It can be divided in two parts, 495 and 9945, that added together give a triangular number (10440 = T₁₄₄).

The spelling of 4959945 in words is "four million, nine hundred fifty-nine thousand, nine hundred forty-five".