16609090 has 16 divisors (see below), whose sum is σ = 30404160. Its totient is φ = 6530800.

The previous prime is 16609069. The next prime is 16609111. The reversal of 16609090 is 9090661.

It is an interprime number because it is at equal distance from previous prime (16609069) and next prime (16609111).

16609090 is a modest number, since divided by 9090 gives 1660 as remainder.

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, 13486 + ... + 14665.

It is an arithmetic number, because the mean of its divisors is an integer number (1900260).

Almost surely, 2^16609090 is an apocalyptic number.

16609090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16609090 is a deficient number, since it is larger than the sum of its proper divisors (13795070).

16609090 is a wasteful number, since it uses less digits than its factorization.

16609090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28217.

The product of its (nonzero) digits is 2916, while the sum is 31.

The square root of 16609090 is about 4075.4251311980. The cubic root of 16609090 is about 255.1419944784.

The spelling of 16609090 in words is "sixteen million, six hundred nine thousand, ninety".