872994657 has 8 divisors (see below), whose sum is σ = 1181366176. Its totient is φ = 573309792.

The previous prime is 872994649. The next prime is 872994679. The reversal of 872994657 is 756499278.

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

It is not a de Polignac number, because 872994657 - 2³ = 872994649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 872994597 and 872994606.

It is not an unprimeable number, because it can be changed into a prime (872994257) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2171428 + ... + 2171829.

It is an arithmetic number, because the mean of its divisors is an integer number (147670772).

Almost surely, 2^872994657 is an apocalyptic number.

It is an amenable number.

872994657 is a deficient number, since it is larger than the sum of its proper divisors (308371519).

872994657 is a wasteful number, since it uses less digits than its factorization.

872994657 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4343327.

The product of its digits is 7620480, while the sum is 57.

The square root of 872994657 is about 29546.4829886740. The cubic root of 872994657 is about 955.7343499706.

The spelling of 872994657 in words is "eight hundred seventy-two million, nine hundred ninety-four thousand, six hundred fifty-seven".