77960339 has 2 divisors, whose sum is σ = 77960340. Its totient is φ = 77960338.

The previous prime is 77960293. The next prime is 77960341. The reversal of 77960339 is 93306977.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 77960339 - 2⁸ = 77960083 is a prime.

Together with 77960341, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 77960339.

It is not a weakly prime, because it can be changed into another prime (77960039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38980169 + 38980170.

It is an arithmetic number, because the mean of its divisors is an integer number (38980170).

Almost surely, 2^77960339 is an apocalyptic number.

77960339 is a deficient number, since it is larger than the sum of its proper divisors (1).

77960339 is an equidigital number, since it uses as much as digits as its factorization.

77960339 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 214326, while the sum is 44.

The square root of 77960339 is about 8829.5152188554. The cubic root of 77960339 is about 427.1934379793.

The spelling of 77960339 in words is "seventy-seven million, nine hundred sixty thousand, three hundred thirty-nine".