4640979 has 16 divisors (see below), whose sum is σ = 7301120. Its totient is φ = 2566080.

The previous prime is 4640971. The next prime is 4640981. The reversal of 4640979 is 9790464.

It is not a de Polignac number, because 4640979 - 2³ = 4640971 is a prime.

It is a nialpdrome in base 13.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4640971) 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 15 ways as a sum of consecutive naturals, for example, 2914 + ... + 4215.

It is an arithmetic number, because the mean of its divisors is an integer number (456320).

Almost surely, 2^4640979 is an apocalyptic number.

4640979 is a deficient number, since it is larger than the sum of its proper divisors (2660141).

4640979 is a wasteful number, since it uses less digits than its factorization.

4640979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7170.

The product of its (nonzero) digits is 54432, while the sum is 39.

The square root of 4640979 is about 2154.2931555385. The cubic root of 4640979 is about 166.8027479721.

The spelling of 4640979 in words is "four million, six hundred forty thousand, nine hundred seventy-nine".