10897531 has 4 divisors (see below), whose sum is σ = 10908864. Its totient is φ = 10886200.

The previous prime is 10897529. The next prime is 10897541. The reversal of 10897531 is 13579801.

It is a happy number.

10897531 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 10897531 - 2¹ = 10897529 is a prime.

It is a super-2 number, since 2×10897531² = 237512363791922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10897541) 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, 4075 + ... + 6196.

It is an arithmetic number, because the mean of its divisors is an integer number (2727216).

Almost surely, 2^10897531 is an apocalyptic number.

10897531 is a deficient number, since it is larger than the sum of its proper divisors (11333).

10897531 is a wasteful number, since it uses less digits than its factorization.

10897531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11332.

The product of its (nonzero) digits is 7560, while the sum is 34.

The square root of 10897531 is about 3301.1408633986. The cubic root of 10897531 is about 221.7052808027.

The spelling of 10897531 in words is "ten million, eight hundred ninety-seven thousand, five hundred thirty-one".