7644474 has 12 divisors (see below), whose sum is σ = 16563066. Its totient is φ = 2548152.

The previous prime is 7644467. The next prime is 7644493. The reversal of 7644474 is 4744467.

7644474 is a `hidden beast` number, since 7 + 644 + 4 + 7 + 4 = 666.

It can be written as a sum of positive squares in only one way, i.e., 4730625 + 2913849 = 2175^2 + 1707^2 .

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 212329 + ... + 212364.

Almost surely, 2^7644474 is an apocalyptic number.

7644474 is an abundant number, since it is smaller than the sum of its proper divisors (8918592).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

7644474 is a wasteful number, since it uses less digits than its factorization.

7644474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 424701 (or 424698 counting only the distinct ones).

The product of its digits is 75264, while the sum is 36.

The square root of 7644474 is about 2764.8641919631. The cubic root of 7644474 is about 196.9922781207.

It can be divided in two parts, 7644 and 474, that added together give a palindrome (8118).

The spelling of 7644474 in words is "seven million, six hundred forty-four thousand, four hundred seventy-four".