7638536 has 16 divisors (see below), whose sum is σ = 14537040. Its totient is φ = 3762000.

The previous prime is 7638523. The next prime is 7638541. The reversal of 7638536 is 6358367.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 7638536.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6590 + ... + 7661.

It is an arithmetic number, because the mean of its divisors is an integer number (908565).

Almost surely, 2^7638536 is an apocalyptic number.

It is an amenable number.

7638536 is a deficient number, since it is larger than the sum of its proper divisors (6898504).

7638536 is a wasteful number, since it uses less digits than its factorization.

7638536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14324 (or 14320 counting only the distinct ones).

The product of its digits is 90720, while the sum is 38.

The square root of 7638536 is about 2763.7901512235. The cubic root of 7638536 is about 196.9412589945.

The spelling of 7638536 in words is "seven million, six hundred thirty-eight thousand, five hundred thirty-six".