76394993 has 2 divisors, whose sum is σ = 76394994. Its totient is φ = 76394992.

The previous prime is 76394987. The next prime is 76394999. The reversal of 76394993 is 39949367.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (76394987) and next prime (76394999).

It can be written as a sum of positive squares in only one way, i.e., 67436944 + 8958049 = 8212^2 + 2993^2 .

It is a cyclic number.

It is not a de Polignac number, because 76394993 - 2⁸ = 76394737 is a prime.

It is not a weakly prime, because it can be changed into another prime (76394999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38197496 + 38197497.

It is an arithmetic number, because the mean of its divisors is an integer number (38197497).

Almost surely, 2^76394993 is an apocalyptic number.

It is an amenable number.

76394993 is a deficient number, since it is larger than the sum of its proper divisors (1).

76394993 is an equidigital number, since it uses as much as digits as its factorization.

76394993 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1102248, while the sum is 50.

The square root of 76394993 is about 8740.4229302706. The cubic root of 76394993 is about 424.3149156398.

The spelling of 76394993 in words is "seventy-six million, three hundred ninety-four thousand, nine hundred ninety-three".