76879999 has 8 divisors (see below), whose sum is σ = 88146080. Its totient is φ = 65684736.

The previous prime is 76879991. The next prime is 76880003. The reversal of 76879999 is 99997867.

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 76879999 - 2³ = 76879991 is a prime.

It is a Duffinian number.

76879999 is a modest number, since divided by 9999 gives 7687 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 76879999.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76879991) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15354 + ... + 19735.

It is an arithmetic number, because the mean of its divisors is an integer number (11018260).

Almost surely, 2^76879999 is an apocalyptic number.

76879999 is a deficient number, since it is larger than the sum of its proper divisors (11266081).

76879999 is a wasteful number, since it uses less digits than its factorization.

76879999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35409.

The product of its digits is 15431472, while the sum is 64.

The square root of 76879999 is about 8768.1240296884. The cubic root of 76879999 is about 425.2109660800.

The spelling of 76879999 in words is "seventy-six million, eight hundred seventy-nine thousand, nine hundred ninety-nine".