17120990 has 16 divisors (see below), whose sum is σ = 31812480. Its totient is φ = 6627360.

The previous prime is 17120981. The next prime is 17121001. The reversal of 17120990 is 9902171.

It is a congruent number.

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, 27305 + ... + 27924.

It is an arithmetic number, because the mean of its divisors is an integer number (1988280).

Almost surely, 2^17120990 is an apocalyptic number.

17120990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

17120990 is a deficient number, since it is larger than the sum of its proper divisors (14691490).

17120990 is a wasteful number, since it uses less digits than its factorization.

17120990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55267.

The product of its (nonzero) digits is 1134, while the sum is 29.

The square root of 17120990 is about 4137.7518050265. The cubic root of 17120990 is about 257.7367163728.

The spelling of 17120990 in words is "seventeen million, one hundred twenty thousand, nine hundred ninety".