76899817 has 2 divisors, whose sum is σ = 76899818. Its totient is φ = 76899816.

The previous prime is 76899791. The next prime is 76899829. The reversal of 76899817 is 71899867.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54819216 + 22080601 = 7404^2 + 4699^2 .

It is a cyclic number.

It is not a de Polignac number, because 76899817 - 2¹⁹ = 76375529 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (76899217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38449908 + 38449909.

It is an arithmetic number, because the mean of its divisors is an integer number (38449909).

Almost surely, 2^76899817 is an apocalyptic number.

It is an amenable number.

76899817 is a deficient number, since it is larger than the sum of its proper divisors (1).

76899817 is an equidigital number, since it uses as much as digits as its factorization.

76899817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1524096, while the sum is 55.

The square root of 76899817 is about 8769.2540731809. The cubic root of 76899817 is about 425.2474996694.

The spelling of 76899817 in words is "seventy-six million, eight hundred ninety-nine thousand, eight hundred seventeen".