76047997 has 2 divisors, whose sum is σ = 76047998. Its totient is φ = 76047996.

The previous prime is 76047977. The next prime is 76048001. The reversal of 76047997 is 79974067.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 70913241 + 5134756 = 8421^2 + 2266^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-76047997 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76047997.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76047967) 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, 38023998 + 38023999.

It is an arithmetic number, because the mean of its divisors is an integer number (38023999).

Almost surely, 2^76047997 is an apocalyptic number.

It is an amenable number.

76047997 is a deficient number, since it is larger than the sum of its proper divisors (1).

76047997 is an equidigital number, since it uses as much as digits as its factorization.

76047997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 666792, while the sum is 49.

The square root of 76047997 is about 8720.5502693351. The cubic root of 76047997 is about 423.6715093206.

The spelling of 76047997 in words is "seventy-six million, forty-seven thousand, nine hundred ninety-seven".