64667074 has 8 divisors (see below), whose sum is σ = 97063740. Its totient is φ = 32312496.

The previous prime is 64667063. The next prime is 64667093. The reversal of 64667074 is 47076646.

It can be written as a sum of positive squares in 2 ways, for example, as 64112049 + 555025 = 8007^2 + 745^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 6349 + ... + 13024.

Almost surely, 2^64667074 is an apocalyptic number.

64667074 is a deficient number, since it is larger than the sum of its proper divisors (32396666).

64667074 is a wasteful number, since it uses less digits than its factorization.

64667074 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21044.

The product of its (nonzero) digits is 169344, while the sum is 40.

The square root of 64667074 is about 8041.5840479348. The cubic root of 64667074 is about 401.3849368407.

The spelling of 64667074 in words is "sixty-four million, six hundred sixty-seven thousand, seventy-four".