76799999 has 8 divisors (see below), whose sum is σ = 82079568. Its totient is φ = 71605120.

The previous prime is 76799971. The next prime is 76800001. The reversal of 76799999 is 99999767.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76799999 is a prime.

It is a Duffinian number.

76799999 is a modest number, since divided by 9999 gives 7679 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76799299) 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, 19292 + ... + 22929.

It is an arithmetic number, because the mean of its divisors is an integer number (10259946).

Almost surely, 2^76799999 is an apocalyptic number.

76799999 is a deficient number, since it is larger than the sum of its proper divisors (5279569).

76799999 is a wasteful number, since it uses less digits than its factorization.

76799999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42345.

The product of its digits is 17360406, while the sum is 65.

The square root of 76799999 is about 8763.5608630282. The cubic root of 76799999 is about 425.0634258282.

The spelling of 76799999 in words is "seventy-six million, seven hundred ninety-nine thousand, nine hundred ninety-nine".