872023512 has 16 divisors (see below), whose sum is σ = 2180058840. Its totient is φ = 290674496.

The previous prime is 872023507. The next prime is 872023519. The reversal of 872023512 is 215320278.

It is a self number, because there is not a number n which added to its sum of digits gives 872023512.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (872023519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18167133 + ... + 18167180.

Almost surely, 2^872023512 is an apocalyptic number.

It is an amenable number.

872023512 is an abundant number, since it is smaller than the sum of its proper divisors (1308035328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

872023512 is a wasteful number, since it uses less digits than its factorization.

872023512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36334322 (or 36334318 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 30.

The square root of 872023512 is about 29530.0442261775. The cubic root of 872023512 is about 955.3798227845.

The spelling of 872023512 in words is "eight hundred seventy-two million, twenty-three thousand, five hundred twelve".