64695078 has 64 divisors (see below), whose sum is σ = 169635840. Its totient is φ = 17884800.

The previous prime is 64695053. The next prime is 64695083. The reversal of 64695078 is 87059646.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8958 + ... + 14478.

It is an arithmetic number, because the mean of its divisors is an integer number (2650560).

Almost surely, 2^64695078 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64695078, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (84817920).

64695078 is an abundant number, since it is smaller than the sum of its proper divisors (104940762).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64695078 is a wasteful number, since it uses less digits than its factorization.

64695078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5570 (or 5564 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 64695078 is about 8043.3250587055. The cubic root of 64695078 is about 401.4428682367.

The spelling of 64695078 in words is "sixty-four million, six hundred ninety-five thousand, seventy-eight".