899972685 has 24 divisors (see below), whose sum is σ = 1593146880. Its totient is φ = 469771872.

The previous prime is 899972669. The next prime is 899972729. The reversal of 899972685 is 586279998.

It is not a de Polignac number, because 899972685 - 2⁴ = 899972669 is a prime.

It is a super-2 number, since 2×899972685² = 1619901667492218450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 210645 + ... + 214874.

It is an arithmetic number, because the mean of its divisors is an integer number (66381120).

Almost surely, 2^899972685 is an apocalyptic number.

It is an amenable number.

899972685 is a deficient number, since it is larger than the sum of its proper divisors (693174195).

899972685 is a wasteful number, since it uses less digits than its factorization.

899972685 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 425577 (or 425574 counting only the distinct ones).

The product of its digits is 19595520, while the sum is 63.

The square root of 899972685 is about 29999.5447465457. The cubic root of 899972685 is about 965.4796169725.

The spelling of 899972685 in words is "eight hundred ninety-nine million, nine hundred seventy-two thousand, six hundred eighty-five".