76865783 has 2 divisors, whose sum is σ = 76865784. Its totient is φ = 76865782.

The previous prime is 76865779. The next prime is 76865797. The reversal of 76865783 is 38756867.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 76865783 - 2² = 76865779 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76865713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38432891 + 38432892.

It is an arithmetic number, because the mean of its divisors is an integer number (38432892).

Almost surely, 2^76865783 is an apocalyptic number.

76865783 is a deficient number, since it is larger than the sum of its proper divisors (1).

76865783 is an equidigital number, since it uses as much as digits as its factorization.

76865783 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1693440, while the sum is 50.

The square root of 76865783 is about 8767.3133284947. The cubic root of 76865783 is about 425.1847556577.

The spelling of 76865783 in words is "seventy-six million, eight hundred sixty-five thousand, seven hundred eighty-three".