76956779 has 2 divisors, whose sum is σ = 76956780. Its totient is φ = 76956778.

The previous prime is 76956769. The next prime is 76956797. The reversal of 76956779 is 97765967.

Together with next prime (76956797) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76956779 - 2¹² = 76952683 is a prime.

It is not a weakly prime, because it can be changed into another prime (76956769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38478389 + 38478390.

It is an arithmetic number, because the mean of its divisors is an integer number (38478390).

Almost surely, 2^76956779 is an apocalyptic number.

76956779 is a deficient number, since it is larger than the sum of its proper divisors (1).

76956779 is an equidigital number, since it uses as much as digits as its factorization.

76956779 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5000940, while the sum is 56.

The square root of 76956779 is about 8772.5012966656. The cubic root of 76956779 is about 425.3524716125.

The spelling of 76956779 in words is "seventy-six million, nine hundred fifty-six thousand, seven hundred seventy-nine".