77106838 has 16 divisors (see below), whose sum is σ = 118182240. Its totient is φ = 37717056.

The previous prime is 77106797. The next prime is 77106847. The reversal of 77106838 is 83860177.

It is a self number, because there is not a number n which added to its sum of digits gives 77106838.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45706 + ... + 47362.

It is an arithmetic number, because the mean of its divisors is an integer number (7386390).

Almost surely, 2^77106838 is an apocalyptic number.

77106838 is a deficient number, since it is larger than the sum of its proper divisors (41075402).

77106838 is a wasteful number, since it uses less digits than its factorization.

77106838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2151.

The product of its (nonzero) digits is 56448, while the sum is 40.

The square root of 77106838 is about 8781.0499372228. The cubic root of 77106838 is about 425.6287588390.

The spelling of 77106838 in words is "seventy-seven million, one hundred six thousand, eight hundred thirty-eight".