76138943 has 2 divisors, whose sum is σ = 76138944. Its totient is φ = 76138942.

The previous prime is 76138897. The next prime is 76138957. The reversal of 76138943 is 34983167.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 76138943 - 2²⁶ = 9030079 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76138943.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (76138973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38069471 + 38069472.

It is an arithmetic number, because the mean of its divisors is an integer number (38069472).

Almost surely, 2^76138943 is an apocalyptic number.

76138943 is a deficient number, since it is larger than the sum of its proper divisors (1).

76138943 is an equidigital number, since it uses as much as digits as its factorization.

76138943 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 108864, while the sum is 41.

The square root of 76138943 is about 8725.7631757916. The cubic root of 76138943 is about 423.8403319981.

The spelling of 76138943 in words is "seventy-six million, one hundred thirty-eight thousand, nine hundred forty-three".