78610885 has 16 divisors (see below), whose sum is σ = 102504960. Its totient is φ = 57654720.

The previous prime is 78610879. The next prime is 78610897. The reversal of 78610885 is 58801687.

It is not a de Polignac number, because 78610885 - 2¹¹ = 78608837 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10402 + ... + 16291.

It is an arithmetic number, because the mean of its divisors is an integer number (6406560).

Almost surely, 2^78610885 is an apocalyptic number.

It is an amenable number.

78610885 is a deficient number, since it is larger than the sum of its proper divisors (23894075).

78610885 is a wasteful number, since it uses less digits than its factorization.

78610885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26748.

The product of its (nonzero) digits is 107520, while the sum is 43.

The square root of 78610885 is about 8866.2779676705. The cubic root of 78610885 is about 428.3783974887.

The spelling of 78610885 in words is "seventy-eight million, six hundred ten thousand, eight hundred eighty-five".