16609086 has 24 divisors (see below), whose sum is σ = 38755080. Its totient is φ = 5110416.

The previous prime is 16609069. The next prime is 16609111. The reversal of 16609086 is 68090661.

It is a self number, because there is not a number n which added to its sum of digits gives 16609086.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35256 + ... + 35723.

It is an arithmetic number, because the mean of its divisors is an integer number (1614795).

Almost surely, 2^16609086 is an apocalyptic number.

16609086 is an abundant number, since it is smaller than the sum of its proper divisors (22145994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

16609086 is a wasteful number, since it uses less digits than its factorization.

16609086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71000 (or 70997 counting only the distinct ones).

The product of its (nonzero) digits is 15552, while the sum is 36.

The square root of 16609086 is about 4075.4246404516. The cubic root of 16609086 is about 255.1419739963.

It can be divided in two parts, 166090 and 86, that added together give a triangular number (166176 = T₅₇₆).

The spelling of 16609086 in words is "sixteen million, six hundred nine thousand, eighty-six".