78607893 has 32 divisors (see below), whose sum is σ = 133459200. Its totient is φ = 40029696.

The previous prime is 78607877. The next prime is 78607897. The reversal of 78607893 is 39870687.

It is not a de Polignac number, because 78607893 - 2⁴ = 78607877 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78607897) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2953 + ... + 12881.

It is an arithmetic number, because the mean of its divisors is an integer number (4170600).

Almost surely, 2^78607893 is an apocalyptic number.

It is an amenable number.

78607893 is a deficient number, since it is larger than the sum of its proper divisors (54851307).

78607893 is a wasteful number, since it uses less digits than its factorization.

78607893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9981.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 78607893 is about 8866.1092368637. The cubic root of 78607893 is about 428.3729625992.

It can be divided in two parts, 7860 and 7893, that added together give a triangular number (15753 = T₁₇₇).

The spelling of 78607893 in words is "seventy-eight million, six hundred seven thousand, eight hundred ninety-three".