9572981 has 4 divisors (see below), whose sum is σ = 10443264. Its totient is φ = 8702700.

The previous prime is 9572977. The next prime is 9572999. The reversal of 9572981 is 1892759.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1892759 = 11 ⋅172069.

It is a cyclic number.

It is not a de Polignac number, because 9572981 - 2² = 9572977 is a prime.

It is a super-2 number, since 2×9572981² = 183283930452722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9572951) 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, 435125 + ... + 435146.

It is an arithmetic number, because the mean of its divisors is an integer number (2610816).

Almost surely, 2^9572981 is an apocalyptic number.

It is an amenable number.

9572981 is a deficient number, since it is larger than the sum of its proper divisors (870283).

9572981 is a wasteful number, since it uses less digits than its factorization.

9572981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 870282.

The product of its digits is 45360, while the sum is 41.

The square root of 9572981 is about 3094.0234323612. The cubic root of 9572981 is about 212.3321377914.

The spelling of 9572981 in words is "nine million, five hundred seventy-two thousand, nine hundred eighty-one".