16890315 has 32 divisors (see below), whose sum is σ = 29902656. Its totient is φ = 8087040.

The previous prime is 16890311. The next prime is 16890317. The reversal of 16890315 is 51309861.

It is not a de Polignac number, because 16890315 - 2² = 16890311 is a prime.

It is not an unprimeable number, because it can be changed into a prime (16890311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6045 + ... + 8385.

It is an arithmetic number, because the mean of its divisors is an integer number (934458).

Almost surely, 2^16890315 is an apocalyptic number.

16890315 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

16890315 is a deficient number, since it is larger than the sum of its proper divisors (13012341).

16890315 is a wasteful number, since it uses less digits than its factorization.

16890315 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2399.

The product of its (nonzero) digits is 6480, while the sum is 33.

The square root of 16890315 is about 4109.7828409783. The cubic root of 16890315 is about 256.5739634479.

It can be divided in two parts, 16890 and 315, that added together give a triangular number (17205 = T₁₈₅).

The spelling of 16890315 in words is "sixteen million, eight hundred ninety thousand, three hundred fifteen".