77682742 has 8 divisors (see below), whose sum is σ = 116600616. Its totient is φ = 38815872.

The previous prime is 77682739. The next prime is 77682751. The reversal of 77682742 is 24728677.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

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, 8683 + ... + 15190.

It is an arithmetic number, because the mean of its divisors is an integer number (14575077).

Almost surely, 2^77682742 is an apocalyptic number.

77682742 is a deficient number, since it is larger than the sum of its proper divisors (38917874).

77682742 is a wasteful number, since it uses less digits than its factorization.

77682742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25502.

The product of its digits is 263424, while the sum is 43.

The square root of 77682742 is about 8813.7813678353. The cubic root of 77682742 is about 426.6857924641.

The spelling of 77682742 in words is "seventy-seven million, six hundred eighty-two thousand, seven hundred forty-two".