78551883 has 32 divisors (see below), whose sum is σ = 125582400. Its totient is φ = 48342528.

The previous prime is 78551843. The next prime is 78551903. The reversal of 78551883 is 38815587.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-78551883 is a prime.

It is not an unprimeable number, because it can be changed into a prime (78551813) 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, 22713 + ... + 25941.

It is an arithmetic number, because the mean of its divisors is an integer number (3924450).

Almost surely, 2^78551883 is an apocalyptic number.

78551883 is a deficient number, since it is larger than the sum of its proper divisors (47030517).

78551883 is a wasteful number, since it uses less digits than its factorization.

78551883 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3308 (or 3302 counting only the distinct ones).

The product of its digits is 268800, while the sum is 45.

The square root of 78551883 is about 8862.9500167834. The cubic root of 78551883 is about 428.2711964383.

The spelling of 78551883 in words is "seventy-eight million, five hundred fifty-one thousand, eight hundred eighty-three".