9525981 has 8 divisors (see below), whose sum is σ = 13011264. Its totient is φ = 6195680.

The previous prime is 9525977. The next prime is 9525991. The reversal of 9525981 is 1895259.

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

It is a cyclic number.

It is not a de Polignac number, because 9525981 - 2² = 9525977 is a prime.

It is a super-2 number, since 2×9525981² = 181488628024722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9525941) 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, 38601 + ... + 38846.

It is an arithmetic number, because the mean of its divisors is an integer number (1626408).

Almost surely, 2^9525981 is an apocalyptic number.

It is an amenable number.

9525981 is a deficient number, since it is larger than the sum of its proper divisors (3485283).

9525981 is a wasteful number, since it uses less digits than its factorization.

9525981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77491.

The product of its digits is 32400, while the sum is 39.

The square root of 9525981 is about 3086.4187985431. The cubic root of 9525981 is about 211.9840752842.

The spelling of 9525981 in words is "nine million, five hundred twenty-five thousand, nine hundred eighty-one".