872161774 has 16 divisors (see below), whose sum is σ = 1450572336. Its totient is φ = 389937600.

The previous prime is 872161723. The next prime is 872161811. The reversal of 872161774 is 477161278.

It is a self number, because there is not a number n which added to its sum of digits gives 872161774.

It is a congruent 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, 323607 + ... + 326290.

It is an arithmetic number, because the mean of its divisors is an integer number (90660771).

Almost surely, 2^872161774 is an apocalyptic number.

872161774 is a deficient number, since it is larger than the sum of its proper divisors (578410562).

872161774 is a wasteful number, since it uses less digits than its factorization.

872161774 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 649971.

The product of its digits is 131712, while the sum is 43.

The square root of 872161774 is about 29532.3851728911. The cubic root of 872161774 is about 955.4303129156.

The spelling of 872161774 in words is "eight hundred seventy-two million, one hundred sixty-one thousand, seven hundred seventy-four".