64864706 has 16 divisors (see below), whose sum is σ = 103110840. Its totient is φ = 30549120.

The previous prime is 64864691. The next prime is 64864717. The reversal of 64864706 is 60746846.

It can be written as a sum of positive squares in 4 ways, for example, as 30349081 + 34515625 = 5509^2 + 5875^2 .

It is a super-3 number, since 3×64864706³ (a number of 24 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11261 + ... + 16016.

Almost surely, 2^64864706 is an apocalyptic number.

64864706 is a deficient number, since it is larger than the sum of its proper divisors (38246134).

64864706 is a wasteful number, since it uses less digits than its factorization.

64864706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27349.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 64864706 is about 8053.8627999240. The cubic root of 64864706 is about 401.7934179463.

The spelling of 64864706 in words is "sixty-four million, eight hundred sixty-four thousand, seven hundred six".