64264636 has 12 divisors (see below), whose sum is σ = 112772128. Its totient is φ = 32044032.

The previous prime is 64264633. The next prime is 64264639. The reversal of 64264636 is 63646246.

It is an interprime number because it is at equal distance from previous prime (64264633) and next prime (64264639).

It is a junction number, because it is equal to n+sod(n) for n = 64264595 and 64264604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64264633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20421 + ... + 23356.

Almost surely, 2^64264636 is an apocalyptic number.

It is an amenable number.

64264636 is a deficient number, since it is larger than the sum of its proper divisors (48507492).

64264636 is a wasteful number, since it uses less digits than its factorization.

64264636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44148 (or 44146 counting only the distinct ones).

The product of its digits is 124416, while the sum is 37.

The square root of 64264636 is about 8016.5226875498. The cubic root of 64264636 is about 400.5505668427.

The spelling of 64264636 in words is "sixty-four million, two hundred sixty-four thousand, six hundred thirty-six".