15890 has 16 divisors (see below), whose sum is σ = 32832. Its totient is φ = 5424.

The previous prime is 15889. The next prime is 15901. The reversal of 15890 is 9851.

15890 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a nialpdrome in base 7.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 44 + ... + 183.

It is an arithmetic number, because the mean of its divisors is an integer number (2052).

2¹⁵⁸⁹⁰ is an apocalyptic number.

15890 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

15890 is an abundant number, since it is smaller than the sum of its proper divisors (16942).

It is a weird number, because it is abundant, but not a pseudoperfect number.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16416).

15890 is a wasteful number, since it uses less digits than its factorization.

15890 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241.

The product of its (nonzero) digits is 360, while the sum is 23.

The square root of 15890 is about 126.0555433133. The cubic root of 15890 is about 25.1405417732.

The spelling of 15890 in words is "fifteen thousand, eight hundred ninety".