76806739 has 2 divisors, whose sum is σ = 76806740. Its totient is φ = 76806738.

The previous prime is 76806707. The next prime is 76806781. The reversal of 76806739 is 93760867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76806739 - 2⁵ = 76806707 is a prime.

It is not a weakly prime, because it can be changed into another prime (76806539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38403369 + 38403370.

It is an arithmetic number, because the mean of its divisors is an integer number (38403370).

Almost surely, 2^76806739 is an apocalyptic number.

76806739 is a deficient number, since it is larger than the sum of its proper divisors (1).

76806739 is an equidigital number, since it uses as much as digits as its factorization.

76806739 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 76806739 is about 8763.9454014730. The cubic root of 76806739 is about 425.0758600457.

The spelling of 76806739 in words is "seventy-six million, eight hundred six thousand, seven hundred thirty-nine".