76816433 has 2 divisors, whose sum is σ = 76816434. Its totient is φ = 76816432.

The previous prime is 76816423. The next prime is 76816469. The reversal of 76816433 is 33461867.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 75134224 + 1682209 = 8668^2 + 1297^2 .

It is an emirp because it is prime and its reverse (33461867) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 76816433 - 2⁸ = 76816177 is a prime.

It is not a weakly prime, because it can be changed into another prime (76816423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38408216 + 38408217.

It is an arithmetic number, because the mean of its divisors is an integer number (38408217).

Almost surely, 2^76816433 is an apocalyptic number.

It is an amenable number.

76816433 is a deficient number, since it is larger than the sum of its proper divisors (1).

76816433 is an equidigital number, since it uses as much as digits as its factorization.

76816433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 76816433 is about 8764.4984454331. The cubic root of 76816433 is about 425.0937426434.

The spelling of 76816433 in words is "seventy-six million, eight hundred sixteen thousand, four hundred thirty-three".