76957457 has 4 divisors (see below), whose sum is σ = 77474100. Its totient is φ = 76440816.

The previous prime is 76957427. The next prime is 76957483. The reversal of 76957457 is 75475967.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17297281 + 59660176 = 4159^2 + 7724^2 .

It is a cyclic number.

It is not a de Polignac number, because 76957457 - 2⁶ = 76957393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (76957427) 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 in 3 ways as a sum of consecutive naturals, for example, 258098 + ... + 258395.

It is an arithmetic number, because the mean of its divisors is an integer number (19368525).

Almost surely, 2^76957457 is an apocalyptic number.

It is an amenable number.

76957457 is a deficient number, since it is larger than the sum of its proper divisors (516643).

76957457 is a wasteful number, since it uses less digits than its factorization.

76957457 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 516642.

The product of its digits is 1852200, while the sum is 50.

The square root of 76957457 is about 8772.5399400630. The cubic root of 76957457 is about 425.3537207471.

The spelling of 76957457 in words is "seventy-six million, nine hundred fifty-seven thousand, four hundred fifty-seven".