64709338 has 16 divisors (see below), whose sum is σ = 101177856. Its totient is φ = 31003920.

The previous prime is 64709303. The next prime is 64709341. The reversal of 64709338 is 83390746.

It is a self number, because there is not a number n which added to its sum of digits gives 64709338.

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, 1320 + ... + 11452.

It is an arithmetic number, because the mean of its divisors is an integer number (6323616).

Almost surely, 2^64709338 is an apocalyptic number.

64709338 is a deficient number, since it is larger than the sum of its proper divisors (36468518).

64709338 is a wasteful number, since it uses less digits than its factorization.

64709338 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10269.

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 64709338 is about 8044.2114591798. The cubic root of 64709338 is about 401.4723612313.

The spelling of 64709338 in words is "sixty-four million, seven hundred nine thousand, three hundred thirty-eight".