76887868 has 6 divisors (see below), whose sum is σ = 134553776. Its totient is φ = 38443932.

The previous prime is 76887859. The next prime is 76887871. The reversal of 76887868 is 86878867.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9610980 + ... + 9610987.

Almost surely, 2^76887868 is an apocalyptic number.

It is an amenable number.

76887868 is a deficient number, since it is larger than the sum of its proper divisors (57665908).

76887868 is a wasteful number, since it uses less digits than its factorization.

76887868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19221971 (or 19221969 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 58.

The square root of 76887868 is about 8768.5727458920. The cubic root of 76887868 is about 425.2254729781.

Subtracting 76887868 from its reverse (86878867), we obtain a palindrome (9990999).

The spelling of 76887868 in words is "seventy-six million, eight hundred eighty-seven thousand, eight hundred sixty-eight".