76440691 has 2 divisors, whose sum is σ = 76440692. Its totient is φ = 76440690.

The previous prime is 76440649. The next prime is 76440701. The reversal of 76440691 is 19604467.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76440691 - 2⁹ = 76440179 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76440691.

It is not a weakly prime, because it can be changed into another prime (76440601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38220345 + 38220346.

It is an arithmetic number, because the mean of its divisors is an integer number (38220346).

Almost surely, 2^76440691 is an apocalyptic number.

76440691 is a deficient number, since it is larger than the sum of its proper divisors (1).

76440691 is an equidigital number, since it uses as much as digits as its factorization.

76440691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 76440691 is about 8743.0367150093. The cubic root of 76440691 is about 424.3995044207.

The spelling of 76440691 in words is "seventy-six million, four hundred forty thousand, six hundred ninety-one".