10815897 has 4 divisors (see below), whose sum is σ = 14421200. Its totient is φ = 7210596.

The previous prime is 10815863. The next prime is 10815901. The reversal of 10815897 is 79851801.

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.

It is not a de Polignac number, because 10815897 - 2⁸ = 10815641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10815817) 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, 1802647 + ... + 1802652.

It is an arithmetic number, because the mean of its divisors is an integer number (3605300).

Almost surely, 2^10815897 is an apocalyptic number.

It is an amenable number.

10815897 is a deficient number, since it is larger than the sum of its proper divisors (3605303).

10815897 is an equidigital number, since it uses as much as digits as its factorization.

10815897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3605302.

The product of its (nonzero) digits is 20160, while the sum is 39.

The square root of 10815897 is about 3288.7531071821. The cubic root of 10815897 is about 221.1502905432.

The spelling of 10815897 in words is "ten million, eight hundred fifteen thousand, eight hundred ninety-seven".