64322992 has 20 divisors (see below), whose sum is σ = 124797816. Its totient is φ = 32117120.

The previous prime is 64322987. The next prime is 64323023. The reversal of 64322992 is 29922346.

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, 11367 + ... + 16057.

Almost surely, 2^64322992 is an apocalyptic number.

It is an amenable number.

64322992 is a deficient number, since it is larger than the sum of its proper divisors (60474824).

64322992 is a wasteful number, since it uses less digits than its factorization.

64322992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5556 (or 5550 counting only the distinct ones).

The product of its digits is 46656, while the sum is 37.

The square root of 64322992 is about 8020.1615943820. The cubic root of 64322992 is about 400.6717711771.

The spelling of 64322992 in words is "sixty-four million, three hundred twenty-two thousand, nine hundred ninety-two".