16690790 has 16 divisors (see below), whose sum is σ = 30354912. Its totient is φ = 6607104.

The previous prime is 16690789. The next prime is 16690799. The reversal of 16690790 is 9709661.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16690799) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7634 + ... + 9573.

It is an arithmetic number, because the mean of its divisors is an integer number (1897182).

Almost surely, 2^16690790 is an apocalyptic number.

16690790 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16690790 is a deficient number, since it is larger than the sum of its proper divisors (13664122).

16690790 is a wasteful number, since it uses less digits than its factorization.

16690790 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17311.

The product of its (nonzero) digits is 20412, while the sum is 38.

The square root of 16690790 is about 4085.4363292065. The cubic root of 16690790 is about 255.5596576391.

The spelling of 16690790 in words is "sixteen million, six hundred ninety thousand, seven hundred ninety".