76689977 has 8 divisors (see below), whose sum is σ = 94387776. Its totient is φ = 60677712.

The previous prime is 76689959. The next prime is 76689983. The reversal of 76689977 is 77998667.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 76689977 - 2⁶ = 76689913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (76689917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 421283 + ... + 421464.

It is an arithmetic number, because the mean of its divisors is an integer number (11798472).

Almost surely, 2^76689977 is an apocalyptic number.

It is an amenable number.

76689977 is a deficient number, since it is larger than the sum of its proper divisors (17697799).

76689977 is a wasteful number, since it uses less digits than its factorization.

76689977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842767.

The product of its digits is 8001504, while the sum is 59.

The square root of 76689977 is about 8757.2813703797. The cubic root of 76689977 is about 424.8603499654.

The spelling of 76689977 in words is "seventy-six million, six hundred eighty-nine thousand, nine hundred seventy-seven".