77238634 has 16 divisors (see below), whose sum is σ = 126626976. Its totient is φ = 35042800.

The previous prime is 77238619. The next prime is 77238677. The reversal of 77238634 is 43683277.

It is a happy 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, 9924 + ... + 15904.

It is an arithmetic number, because the mean of its divisors is an integer number (7914186).

Almost surely, 2^77238634 is an apocalyptic number.

77238634 is a deficient number, since it is larger than the sum of its proper divisors (49388342).

77238634 is a wasteful number, since it uses less digits than its factorization.

77238634 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6581.

The product of its digits is 169344, while the sum is 40.

The square root of 77238634 is about 8788.5513026892. The cubic root of 77238634 is about 425.8711248799.

The spelling of 77238634 in words is "seventy-seven million, two hundred thirty-eight thousand, six hundred thirty-four".