64868036 has 6 divisors (see below), whose sum is σ = 113519070. Its totient is φ = 32434016.

The previous prime is 64868021. The next prime is 64868053. The reversal of 64868036 is 63086846.

It can be written as a sum of positive squares in only one way, i.e., 64802500 + 65536 = 8050^2 + 256^2 .

It is a junction number, because it is equal to n+sod(n) for n = 64867984 and 64868002.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8108501 + ... + 8108508.

It is an arithmetic number, because the mean of its divisors is an integer number (18919845).

Almost surely, 2^64868036 is an apocalyptic number.

It is an amenable number.

64868036 is a deficient number, since it is larger than the sum of its proper divisors (48651034).

64868036 is a wasteful number, since it uses less digits than its factorization.

64868036 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16217013 (or 16217011 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 64868036 is about 8054.0695303679. The cubic root of 64868036 is about 401.8002935354.

The spelling of 64868036 in words is "sixty-four million, eight hundred sixty-eight thousand, thirty-six".