76999957 has 8 divisors (see below), whose sum is σ = 78189440. Its totient is φ = 75816000.

The previous prime is 76999907. The next prime is 76999961. The reversal of 76999957 is 75999967.

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 76999957 - 2⁷ = 76999829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 76999895 and 76999904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76999907) 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, 33082 + ... + 35332.

It is an arithmetic number, because the mean of its divisors is an integer number (9773680).

Almost surely, 2^76999957 is an apocalyptic number.

It is an amenable number.

76999957 is a deficient number, since it is larger than the sum of its proper divisors (1189483).

76999957 is a wasteful number, since it uses less digits than its factorization.

76999957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its digits is 9644670, while the sum is 61.

The square root of 76999957 is about 8774.9619372394. The cubic root of 76999957 is about 425.4320073185.

The spelling of 76999957 in words is "seventy-six million, nine hundred ninety-nine thousand, nine hundred fifty-seven".