812542377 has 8 divisors (see below), whose sum is σ = 1083618016. Its totient is φ = 541580832.

The previous prime is 812542373. The next prime is 812542403. The reversal of 812542377 is 773245218.

812542377 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 812542377 - 2² = 812542373 is a prime.

It is a super-2 number, since 2×812542377² = 1320450228841620258, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (812542373) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10228 + ... + 41589.

It is an arithmetic number, because the mean of its divisors is an integer number (135452252).

Almost surely, 2^812542377 is an apocalyptic number.

It is an amenable number.

812542377 is a deficient number, since it is larger than the sum of its proper divisors (271075639).

812542377 is a wasteful number, since it uses less digits than its factorization.

812542377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57047.

The product of its digits is 94080, while the sum is 39.

The square root of 812542377 is about 28505.1289595399. The cubic root of 812542377 is about 933.1440117556.

The spelling of 812542377 in words is "eight hundred twelve million, five hundred forty-two thousand, three hundred seventy-seven".