16997090 has 32 divisors (see below), whose sum is σ = 33592320. Its totient is φ = 6140800.

The previous prime is 16997081. The next prime is 16997107. The reversal of 16997090 is 9079961.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20606 + ... + 21414.

It is an arithmetic number, because the mean of its divisors is an integer number (1049760).

Almost surely, 2^16997090 is an apocalyptic number.

16997090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16997090 is a deficient number, since it is larger than the sum of its proper divisors (16595230).

16997090 is a wasteful number, since it uses less digits than its factorization.

16997090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1018.

The product of its (nonzero) digits is 30618, while the sum is 41.

The square root of 16997090 is about 4122.7527211804. The cubic root of 16997090 is about 257.1134867984.

The spelling of 16997090 in words is "sixteen million, nine hundred ninety-seven thousand, ninety".