103890870 has 64 divisors (see below), whose sum is σ = 281226240. Its totient is φ = 27285984.

The previous prime is 103890833. The next prime is 103890877. The reversal of 103890870 is 78098301.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103890877) 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, 15219 + ... + 20961.

It is an arithmetic number, because the mean of its divisors is an integer number (4394160).

Almost surely, 2^103890870 is an apocalyptic number.

103890870 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 103890870, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (140613120).

103890870 is an abundant number, since it is smaller than the sum of its proper divisors (177335370).

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

103890870 is a wasteful number, since it uses less digits than its factorization.

103890870 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5826 (or 5820 counting only the distinct ones).

The product of its (nonzero) digits is 12096, while the sum is 36.

The square root of 103890870 is about 10192.6870843757. The cubic root of 103890870 is about 470.1023920572.

The spelling of 103890870 in words is "one hundred three million, eight hundred ninety thousand, eight hundred seventy".