4523949 has 12 divisors (see below), whose sum is σ = 6555900. Its totient is φ = 3006144.

The previous prime is 4523947. The next prime is 4523951. The reversal of 4523949 is 9493254.

It is an interprime number because it is at equal distance from previous prime (4523947) and next prime (4523951).

It can be written as a sum of positive squares in 2 ways, for example, as 4334724 + 189225 = 2082^2 + 435^2 .

It is not a de Polignac number, because 4523949 - 2¹ = 4523947 is a prime.

It is a super-2 number, since 2×4523949² = 40932229109202, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4523941) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3067 + ... + 4295.

It is an arithmetic number, because the mean of its divisors is an integer number (546325).

Almost surely, 2^4523949 is an apocalyptic number.

It is an amenable number.

4523949 is a deficient number, since it is larger than the sum of its proper divisors (2031951).

4523949 is a wasteful number, since it uses less digits than its factorization.

4523949 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1644 (or 1641 counting only the distinct ones).

The product of its digits is 38880, while the sum is 36.

The square root of 4523949 is about 2126.9576864621. The cubic root of 4523949 is about 165.3887253517.

The spelling of 4523949 in words is "four million, five hundred twenty-three thousand, nine hundred forty-nine".