10897631 has 4 divisors (see below), whose sum is σ = 10921632. Its totient is φ = 10873632.

The previous prime is 10897613. The next prime is 10897633. The reversal of 10897631 is 13679801.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13679801 = 2269 ⋅6029.

It is a cyclic number.

It is not a de Polignac number, because 10897631 - 2⁶ = 10897567 is a prime.

It is a super-2 number, since 2×10897631² = 237516722824322, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10897591 and 10897600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10897633) 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 3 ways as a sum of consecutive naturals, for example, 11306 + ... + 12231.

It is an arithmetic number, because the mean of its divisors is an integer number (2730408).

Almost surely, 2^10897631 is an apocalyptic number.

10897631 is a deficient number, since it is larger than the sum of its proper divisors (24001).

10897631 is an equidigital number, since it uses as much as digits as its factorization.

10897631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24000.

The product of its (nonzero) digits is 9072, while the sum is 35.

The square root of 10897631 is about 3301.1560096427. The cubic root of 10897631 is about 221.7059589520.

The spelling of 10897631 in words is "ten million, eight hundred ninety-seven thousand, six hundred thirty-one".