76983779 has 2 divisors, whose sum is σ = 76983780. Its totient is φ = 76983778.

The previous prime is 76983761. The next prime is 76983787. The reversal of 76983779 is 97738967.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76983779 - 2²⁴ = 60206563 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76983749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38491889 + 38491890.

It is an arithmetic number, because the mean of its divisors is an integer number (38491890).

Almost surely, 2^76983779 is an apocalyptic number.

76983779 is a deficient number, since it is larger than the sum of its proper divisors (1).

76983779 is an equidigital number, since it uses as much as digits as its factorization.

76983779 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4000752, while the sum is 56.

The square root of 76983779 is about 8774.0400614540. The cubic root of 76983779 is about 425.4022102408.

It can be divided in two parts, 769 and 83779, that added together give a palindrome (84548).

The spelling of 76983779 in words is "seventy-six million, nine hundred eighty-three thousand, seven hundred seventy-nine".