76661339 has 2 divisors, whose sum is σ = 76661340. Its totient is φ = 76661338.

The previous prime is 76661281. The next prime is 76661353. The reversal of 76661339 is 93316667.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76661339 - 2⁸ = 76661083 is a prime.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 76661296 and 76661305.

It is not a weakly prime, because it can be changed into another prime (76661639) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38330669 + 38330670.

It is an arithmetic number, because the mean of its divisors is an integer number (38330670).

Almost surely, 2^76661339 is an apocalyptic number.

76661339 is a deficient number, since it is larger than the sum of its proper divisors (1).

76661339 is an equidigital number, since it uses as much as digits as its factorization.

76661339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 122472, while the sum is 41.

The square root of 76661339 is about 8755.6461212180. The cubic root of 76661339 is about 424.8074588054.

The spelling of 76661339 in words is "seventy-six million, six hundred sixty-one thousand, three hundred thirty-nine".