7264636 has 6 divisors (see below), whose sum is σ = 12713120. Its totient is φ = 3632316.

The previous prime is 7264613. The next prime is 7264637. The reversal of 7264636 is 6364627.

It is an Ulam number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7264637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 908076 + ... + 908083.

Almost surely, 2^7264636 is an apocalyptic number.

It is an amenable number.

7264636 is a deficient number, since it is larger than the sum of its proper divisors (5448484).

7264636 is a wasteful number, since it uses less digits than its factorization.

7264636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1816163 (or 1816161 counting only the distinct ones).

The product of its digits is 36288, while the sum is 34.

The square root of 7264636 is about 2695.2988702554. The cubic root of 7264636 is about 193.6739839154.

Subtracting from 7264636 its reverse (6364627), we obtain a palindrome (900009).

The spelling of 7264636 in words is "seven million, two hundred sixty-four thousand, six hundred thirty-six".