872456529 has 16 divisors (see below), whose sum is σ = 1372344320. Its totient is φ = 482464080.

The previous prime is 872456521. The next prime is 872456531. The reversal of 872456529 is 925654278.

It is not a de Polignac number, because 872456529 - 2³ = 872456521 is a prime.

It is a super-2 number, since 2×872456529² = 1522360789989455682, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (872456521) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 669439 + ... + 670740.

It is an arithmetic number, because the mean of its divisors is an integer number (85771520).

Almost surely, 2^872456529 is an apocalyptic number.

It is an amenable number.

872456529 is a deficient number, since it is larger than the sum of its proper divisors (499887791).

872456529 is a wasteful number, since it uses less digits than its factorization.

872456529 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1340220.

The product of its digits is 1209600, while the sum is 48.

The square root of 872456529 is about 29537.3751203454. The cubic root of 872456529 is about 955.5379329127.

The spelling of 872456529 in words is "eight hundred seventy-two million, four hundred fifty-six thousand, five hundred twenty-nine".