77342975 has 12 divisors (see below), whose sum is σ = 97121760. Its totient is φ = 61089600.

The previous prime is 77342959. The next prime is 77342981. The reversal of 77342975 is 57924377.

It is not a de Polignac number, because 77342975 - 2⁴ = 77342959 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17606 + ... + 21555.

It is an arithmetic number, because the mean of its divisors is an integer number (8093480).

Almost surely, 2^77342975 is an apocalyptic number.

77342975 is a deficient number, since it is larger than the sum of its proper divisors (19778785).

77342975 is a wasteful number, since it uses less digits than its factorization.

77342975 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39250 (or 39245 counting only the distinct ones).

The product of its digits is 370440, while the sum is 44.

The square root of 77342975 is about 8794.4854880772. The cubic root of 77342975 is about 426.0628071267.

The spelling of 77342975 in words is "seventy-seven million, three hundred forty-two thousand, nine hundred seventy-five".