76967939 has 2 divisors, whose sum is σ = 76967940. Its totient is φ = 76967938.

The previous prime is 76967921. The next prime is 76967941. The reversal of 76967939 is 93976967.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76967939 is a prime.

Together with 76967941, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76964939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38483969 + 38483970.

It is an arithmetic number, because the mean of its divisors is an integer number (38483970).

Almost surely, 2^76967939 is an apocalyptic number.

76967939 is a deficient number, since it is larger than the sum of its proper divisors (1).

76967939 is an equidigital number, since it uses as much as digits as its factorization.

76967939 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3857868, while the sum is 56.

The square root of 76967939 is about 8773.1373521677. The cubic root of 76967939 is about 425.3730316558.

Subtracting 76967939 from its reverse (93976967), we obtain a triangular number (17009028 = T₅₈₃₂).

The spelling of 76967939 in words is "seventy-six million, nine hundred sixty-seven thousand, nine hundred thirty-nine".