76117957 has 4 divisors (see below), whose sum is σ = 77737536. Its totient is φ = 74498380.

The previous prime is 76117939. The next prime is 76117961. The reversal of 76117957 is 75971167.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 75971167 = 1993 ⋅38119.

It is a cyclic number.

It is not a de Polignac number, because 76117957 - 2¹¹ = 76115909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (76117967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 809719 + ... + 809812.

It is an arithmetic number, because the mean of its divisors is an integer number (19434384).

Almost surely, 2^76117957 is an apocalyptic number.

It is an amenable number.

76117957 is a deficient number, since it is larger than the sum of its proper divisors (1619579).

76117957 is a wasteful number, since it uses less digits than its factorization.

76117957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1619578.

The product of its digits is 92610, while the sum is 43.

The square root of 76117957 is about 8724.5605619997. The cubic root of 76117957 is about 423.8013877111.

The spelling of 76117957 in words is "seventy-six million, one hundred seventeen thousand, nine hundred fifty-seven".