77716894 has 32 divisors (see below), whose sum is σ = 127534176. Its totient is φ = 35374080.

The previous prime is 77716889. The next prime is 77716901. The reversal of 77716894 is 49861777.

It is a super-2 number, since 2×77716894² = 12079831226014472, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 274477 + ... + 274759.

It is an arithmetic number, because the mean of its divisors is an integer number (3985443).

Almost surely, 2^77716894 is an apocalyptic number.

77716894 is a deficient number, since it is larger than the sum of its proper divisors (49817282).

77716894 is a wasteful number, since it uses less digits than its factorization.

77716894 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 540.

The product of its digits is 592704, while the sum is 49.

The square root of 77716894 is about 8815.7185753630. The cubic root of 77716894 is about 426.7483118768.

It can be divided in two parts, 777 and 16894, that added together give a palindrome (17671).

The spelling of 77716894 in words is "seventy-seven million, seven hundred sixteen thousand, eight hundred ninety-four".