10691090 has 48 divisors (see below), whose sum is σ = 21022848. Its totient is φ = 3910368.

The previous prime is 10691089. The next prime is 10691099. The reversal of 10691090 is 9019601.

It is a super-2 number, since 2×10691090² = 228598810776200, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10691099) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 227447 + ... + 227493.

It is an arithmetic number, because the mean of its divisors is an integer number (437976).

Almost surely, 2^10691090 is an apocalyptic number.

10691090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

10691090 is a deficient number, since it is larger than the sum of its proper divisors (10331758).

10691090 is a wasteful number, since it uses less digits than its factorization.

10691090 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 10691090 is about 3269.7232298774. The cubic root of 10691090 is about 220.2963636724.

The spelling of 10691090 in words is "ten million, six hundred ninety-one thousand, ninety".