9986572 has 6 divisors (see below), whose sum is σ = 17476508. Its totient is φ = 4993284.

The previous prime is 9986569. The next prime is 9986573. The reversal of 9986572 is 2756899.

It is a super-2 number, since 2×9986572² = 199463240622368, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (9986573) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1248318 + ... + 1248325.

Almost surely, 2^9986572 is an apocalyptic number.

It is an amenable number.

9986572 is a deficient number, since it is larger than the sum of its proper divisors (7489936).

9986572 is a wasteful number, since it uses less digits than its factorization.

9986572 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2496647 (or 2496645 counting only the distinct ones).

The product of its digits is 272160, while the sum is 46.

The square root of 9986572 is about 3160.1537937259. The cubic root of 9986572 is about 215.3469933110.

The spelling of 9986572 in words is "nine million, nine hundred eighty-six thousand, five hundred seventy-two".