64732636 has 6 divisors (see below), whose sum is σ = 113282120. Its totient is φ = 32366316.

The previous prime is 64732631. The next prime is 64732693. The reversal of 64732636 is 63623746.

It is a junction number, because it is equal to n+sod(n) for n = 64732595 and 64732604.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64732631) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8091576 + ... + 8091583.

Almost surely, 2^64732636 is an apocalyptic number.

It is an amenable number.

64732636 is a deficient number, since it is larger than the sum of its proper divisors (48549484).

64732636 is a wasteful number, since it uses less digits than its factorization.

64732636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16183163 (or 16183161 counting only the distinct ones).

The product of its digits is 108864, while the sum is 37.

The square root of 64732636 is about 8045.6594509089. The cubic root of 64732636 is about 401.5205375896.

The spelling of 64732636 in words is "sixty-four million, seven hundred thirty-two thousand, six hundred thirty-six".