16863090 has 16 divisors (see below), whose sum is σ = 40471488. Its totient is φ = 4496816.

The previous prime is 16863079. The next prime is 16863131. The reversal of 16863090 is 9036861.

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 7 ways as a sum of consecutive naturals, for example, 281022 + ... + 281081.

It is an arithmetic number, because the mean of its divisors is an integer number (2529468).

Almost surely, 2^16863090 is an apocalyptic number.

16863090 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

16863090 is an abundant number, since it is smaller than the sum of its proper divisors (23608398).

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

16863090 is a wasteful number, since it uses less digits than its factorization.

16863090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562113.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 16863090 is about 4106.4692863822. The cubic root of 16863090 is about 256.4360346485.

The spelling of 16863090 in words is "sixteen million, eight hundred sixty-three thousand, ninety".