4663945 has 24 divisors (see below), whose sum is σ = 6636168. Its totient is φ = 3125760.

The previous prime is 4663931. The next prime is 4663969. The reversal of 4663945 is 5493664.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 156816 + 4507129 = 396^2 + 2123^2 .

It is not a de Polignac number, because 4663945 - 2⁵ = 4663913 is a prime.

4663945 is a lucky number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7569 + ... + 8161.

It is an arithmetic number, because the mean of its divisors is an integer number (276507).

Almost surely, 2^4663945 is an apocalyptic number.

It is an amenable number.

4663945 is a deficient number, since it is larger than the sum of its proper divisors (1972223).

4663945 is a wasteful number, since it uses less digits than its factorization.

4663945 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 633 (or 622 counting only the distinct ones).

The product of its digits is 77760, while the sum is 37.

The square root of 4663945 is about 2159.6168641683. The cubic root of 4663945 is about 167.0774378814.

The spelling of 4663945 in words is "four million, six hundred sixty-three thousand, nine hundred forty-five".