77317941 has 4 divisors (see below), whose sum is σ = 103090592. Its totient is φ = 51545292.

The previous prime is 77317871. The next prime is 77317967. The reversal of 77317941 is 14971377.

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.

It is a de Polignac number, because none of the positive numbers 2^k-77317941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 77317941.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (77313941) 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, 12886321 + ... + 12886326.

It is an arithmetic number, because the mean of its divisors is an integer number (25772648).

Almost surely, 2^77317941 is an apocalyptic number.

It is an amenable number.

77317941 is a deficient number, since it is larger than the sum of its proper divisors (25772651).

77317941 is a wasteful number, since it uses less digits than its factorization.

77317941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25772650.

The product of its digits is 37044, while the sum is 39.

The square root of 77317941 is about 8793.0620946289. The cubic root of 77317941 is about 426.0168335167.

The spelling of 77317941 in words is "seventy-seven million, three hundred seventeen thousand, nine hundred forty-one".