76823393 has 2 divisors, whose sum is σ = 76823394. Its totient is φ = 76823392.

The previous prime is 76823387. The next prime is 76823423. The reversal of 76823393 is 39332867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73393489 + 3429904 = 8567^2 + 1852^2 .

It is a cyclic number.

It is not a de Polignac number, because 76823393 - 2⁴ = 76823377 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76823393.

It is not a weakly prime, because it can be changed into another prime (76823303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38411696 + 38411697.

It is an arithmetic number, because the mean of its divisors is an integer number (38411697).

Almost surely, 2^76823393 is an apocalyptic number.

It is an amenable number.

76823393 is a deficient number, since it is larger than the sum of its proper divisors (1).

76823393 is an equidigital number, since it uses as much as digits as its factorization.

76823393 is an evil number, because the sum of its binary digits is even.

The product of its digits is 163296, while the sum is 41.

The square root of 76823393 is about 8764.8954928168. The cubic root of 76823393 is about 425.1065808820.

The spelling of 76823393 in words is "seventy-six million, eight hundred twenty-three thousand, three hundred ninety-three".