77693086 has 4 divisors (see below), whose sum is σ = 116539632. Its totient is φ = 38846542.

The previous prime is 77693053. The next prime is 77693107. The reversal of 77693086 is 68039677.

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

It is a super-2 number, since 2×77693086² = 12072431224406792, 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 as a sum of consecutive naturals, namely, 19423270 + ... + 19423273.

It is an arithmetic number, because the mean of its divisors is an integer number (29134908).

Almost surely, 2^77693086 is an apocalyptic number.

77693086 is a deficient number, since it is larger than the sum of its proper divisors (38846546).

77693086 is a wasteful number, since it uses less digits than its factorization.

77693086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38846545.

The product of its (nonzero) digits is 381024, while the sum is 46.

The square root of 77693086 is about 8814.3681565952. The cubic root of 77693086 is about 426.7047303553.

The spelling of 77693086 in words is "seventy-seven million, six hundred ninety-three thousand, eighty-six".