77316938 has 8 divisors (see below), whose sum is σ = 121017888. Its totient is φ = 36977644.

The previous prime is 77316937. The next prime is 77316949. The reversal of 77316938 is 83961377.

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

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (77316937) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 840356 + ... + 840447.

It is an arithmetic number, because the mean of its divisors is an integer number (15127236).

Almost surely, 2^77316938 is an apocalyptic number.

77316938 is a deficient number, since it is larger than the sum of its proper divisors (43700950).

77316938 is a wasteful number, since it uses less digits than its factorization.

77316938 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1680828.

The product of its digits is 190512, while the sum is 44.

The square root of 77316938 is about 8793.0050608424. The cubic root of 77316938 is about 426.0149913538.

The spelling of 77316938 in words is "seventy-seven million, three hundred sixteen thousand, nine hundred thirty-eight".