77138318 has 8 divisors (see below), whose sum is σ = 119697480. Its totient is φ = 37239160.

The previous prime is 77138287. The next prime is 77138329. The reversal of 77138318 is 81383177.

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, 664928 + ... + 665043.

It is an arithmetic number, because the mean of its divisors is an integer number (14962185).

Almost surely, 2^77138318 is an apocalyptic number.

77138318 is a deficient number, since it is larger than the sum of its proper divisors (42559162).

77138318 is a wasteful number, since it uses less digits than its factorization.

77138318 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1330002.

The product of its digits is 28224, while the sum is 38.

The square root of 77138318 is about 8782.8422506612. The cubic root of 77138318 is about 425.6866740238.

The spelling of 77138318 in words is "seventy-seven million, one hundred thirty-eight thousand, three hundred eighteen".