78619264 has 32 divisors (see below), whose sum is σ = 164872800. Its totient is φ = 37239552.

The previous prime is 78619259. The next prime is 78619279. The reversal of 78619264 is 46291687.

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 78619264.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13732 + ... + 18595.

It is an arithmetic number, because the mean of its divisors is an integer number (5152275).

Almost surely, 2^78619264 is an apocalyptic number.

It is an amenable number.

78619264 is an abundant number, since it is smaller than the sum of its proper divisors (86253536).

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

78619264 is a wasteful number, since it uses less digits than its factorization.

78619264 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32360 (or 32348 counting only the distinct ones).

The product of its digits is 145152, while the sum is 43.

The square root of 78619264 is about 8866.7504757944. The cubic root of 78619264 is about 428.3936169886.

The spelling of 78619264 in words is "seventy-eight million, six hundred nineteen thousand, two hundred sixty-four".