78800887 has 6 divisors (see below), whose sum is σ = 86615984. Its totient is φ = 71637060.

The previous prime is 78800879. The next prime is 78800903.

78800887 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 78800887 - 2³ = 78800879 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78800807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 325503 + ... + 325744.

Almost surely, 2^78800887 is an apocalyptic number.

78800887 is a deficient number, since it is larger than the sum of its proper divisors (7815097).

78800887 is a wasteful number, since it uses less digits than its factorization.

78800887 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651269 (or 651258 counting only the distinct ones).

The product of its (nonzero) digits is 200704, while the sum is 46.

The square root of 78800887 is about 8876.9863692584. The cubic root of 78800887 is about 428.7232490740.

The spelling of 78800887 in words is "seventy-eight million, eight hundred thousand, eight hundred eighty-seven".