76138897 has 2 divisors, whose sum is σ = 76138898. Its totient is φ = 76138896.

The previous prime is 76138873. The next prime is 76138943. The reversal of 76138897 is 79883167.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 72437121 + 3701776 = 8511^2 + 1924^2 .

It is a cyclic number.

It is not a de Polignac number, because 76138897 - 2¹¹ = 76136849 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 76138897.

It is not a weakly prime, because it can be changed into another prime (76138817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38069448 + 38069449.

It is an arithmetic number, because the mean of its divisors is an integer number (38069449).

Almost surely, 2^76138897 is an apocalyptic number.

It is an amenable number.

76138897 is a deficient number, since it is larger than the sum of its proper divisors (1).

76138897 is an equidigital number, since it uses as much as digits as its factorization.

76138897 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 49.

The square root of 76138897 is about 8725.7605399186. The cubic root of 76138897 is about 423.8402466425.

The spelling of 76138897 in words is "seventy-six million, one hundred thirty-eight thousand, eight hundred ninety-seven".