10891002 has 16 divisors (see below), whose sum is σ = 21820032. Its totient is φ = 3624000.

The previous prime is 10890989. The next prime is 10891039. The reversal of 10891002 is 20019801.

It is a super-2 number, since 2×10891002² = 237227849128008, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 10891002.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3298 + ... + 5714.

It is an arithmetic number, because the mean of its divisors is an integer number (1363752).

Almost surely, 2^10891002 is an apocalyptic number.

10891002 is an abundant number, since it is smaller than the sum of its proper divisors (10929030).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10891002 is a wasteful number, since it uses less digits than its factorization.

10891002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3173.

The product of its (nonzero) digits is 144, while the sum is 21.

The square root of 10891002 is about 3300.1518146897. The cubic root of 10891002 is about 221.6609954517.

The spelling of 10891002 in words is "ten million, eight hundred ninety-one thousand, two".