7477972 has 12 divisors (see below), whose sum is σ = 13134996. Its totient is φ = 3725120.

The previous prime is 7477961. The next prime is 7477979. The reversal of 7477972 is 2797747.

It can be written as a sum of positive squares in 2 ways, for example, as 2114116 + 5363856 = 1454^2 + 2316^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7477979) 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 3 ways as a sum of consecutive naturals, for example, 2203 + ... + 4450.

It is an arithmetic number, because the mean of its divisors is an integer number (1094583).

Almost surely, 2^7477972 is an apocalyptic number.

It is an amenable number.

7477972 is a deficient number, since it is larger than the sum of its proper divisors (5657024).

7477972 is a wasteful number, since it uses less digits than its factorization.

7477972 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6938 (or 6936 counting only the distinct ones).

The product of its digits is 172872, while the sum is 43.

The square root of 7477972 is about 2734.5880859830. The cubic root of 7477972 is about 195.5515570138.

The spelling of 7477972 in words is "seven million, four hundred seventy-seven thousand, nine hundred seventy-two".