64308974 has 4 divisors (see below), whose sum is σ = 96463464. Its totient is φ = 32154486.

The previous prime is 64308971. The next prime is 64308983. The reversal of 64308974 is 47980346.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64308971) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16077242 + ... + 16077245.

It is an arithmetic number, because the mean of its divisors is an integer number (24115866).

Almost surely, 2^64308974 is an apocalyptic number.

64308974 is a deficient number, since it is larger than the sum of its proper divisors (32154490).

64308974 is a wasteful number, since it uses less digits than its factorization.

64308974 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32154489.

The product of its (nonzero) digits is 145152, while the sum is 41.

The square root of 64308974 is about 8019.2876242220. The cubic root of 64308974 is about 400.6426627419.

The spelling of 64308974 in words is "sixty-four million, three hundred eight thousand, nine hundred seventy-four".