76990678 has 4 divisors (see below), whose sum is σ = 115486020. Its totient is φ = 38495338.

The previous prime is 76990657. The next prime is 76990687. The reversal of 76990678 is 87609967.

It is a semiprime because it is the product of two primes.

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 as a sum of consecutive naturals, namely, 19247668 + ... + 19247671.

It is an arithmetic number, because the mean of its divisors is an integer number (28871505).

Almost surely, 2^76990678 is an apocalyptic number.

76990678 is a deficient number, since it is larger than the sum of its proper divisors (38495342).

76990678 is a wasteful number, since it uses less digits than its factorization.

76990678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38495341.

The product of its (nonzero) digits is 1143072, while the sum is 52.

The square root of 76990678 is about 8774.4332010677. The cubic root of 76990678 is about 425.4149175160.

The spelling of 76990678 in words is "seventy-six million, nine hundred ninety thousand, six hundred seventy-eight".