16926890 has 16 divisors (see below), whose sum is σ = 30969000. Its totient is φ = 6659520.

The previous prime is 16926881. The next prime is 16926901. The reversal of 16926890 is 9862961.

It can be written as a sum of positive squares in 4 ways, for example, as 6744409 + 10182481 = 2597^2 + 3191^2 .

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, 13265 + ... + 14484.

Almost surely, 2^16926890 is an apocalyptic number.

16926890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16926890 is a deficient number, since it is larger than the sum of its proper divisors (14042110).

16926890 is a wasteful number, since it uses less digits than its factorization.

16926890 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27817.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 16926890 is about 4114.2301831570. The cubic root of 16926890 is about 256.7590286211.

The spelling of 16926890 in words is "sixteen million, nine hundred twenty-six thousand, eight hundred ninety".