76316257 has 2 divisors, whose sum is σ = 76316258. Its totient is φ = 76316256.

The previous prime is 76316243. The next prime is 76316269. The reversal of 76316257 is 75261367.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 75411856 + 904401 = 8684^2 + 951^2 .

It is a cyclic number.

It is not a de Polignac number, because 76316257 - 2²³ = 67927649 is a prime.

It is a super-3 number, since 3×76316257³ (a number of 25 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (76316557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38158128 + 38158129.

It is an arithmetic number, because the mean of its divisors is an integer number (38158129).

Almost surely, 2^76316257 is an apocalyptic number.

It is an amenable number.

76316257 is a deficient number, since it is larger than the sum of its proper divisors (1).

76316257 is an equidigital number, since it uses as much as digits as its factorization.

76316257 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 52920, while the sum is 37.

The square root of 76316257 is about 8735.9176392638. The cubic root of 76316257 is about 424.1690930668.

It can be divided in two parts, 763 and 16257, that added together give a triangular number (17020 = T₁₈₄).

The spelling of 76316257 in words is "seventy-six million, three hundred sixteen thousand, two hundred fifty-seven".