64621324 has 6 divisors (see below), whose sum is σ = 113087324. Its totient is φ = 32310660.

The previous prime is 64621321. The next prime is 64621331. The reversal of 64621324 is 42312646.

It is a junction number, because it is equal to n+sod(n) for n = 64621292 and 64621301.

It is not an unprimeable number, because it can be changed into a prime (64621321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8077662 + ... + 8077669.

Almost surely, 2^64621324 is an apocalyptic number.

It is an amenable number.

64621324 is a deficient number, since it is larger than the sum of its proper divisors (48466000).

64621324 is a wasteful number, since it uses less digits than its factorization.

64621324 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16155335 (or 16155333 counting only the distinct ones).

The product of its digits is 6912, while the sum is 28.

The square root of 64621324 is about 8038.7389558313. The cubic root of 64621324 is about 401.2902586069.

The spelling of 64621324 in words is "sixty-four million, six hundred twenty-one thousand, three hundred twenty-four".