103789990 has 16 divisors (see below), whose sum is σ = 188250480. Its totient is φ = 41198560.

The previous prime is 103789979. The next prime is 103789997. The reversal of 103789990 is 99987301.

It is a self number, because there is not a number n which added to its sum of digits gives 103789990.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103789997) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 38305 + ... + 40924.

It is an arithmetic number, because the mean of its divisors is an integer number (11765655).

Almost surely, 2^103789990 is an apocalyptic number.

103789990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

103789990 is a deficient number, since it is larger than the sum of its proper divisors (84460490).

103789990 is a wasteful number, since it uses less digits than its factorization.

103789990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79367.

The product of its (nonzero) digits is 122472, while the sum is 46.

The square root of 103789990 is about 10187.7372365015. The cubic root of 103789990 is about 469.9501833423.

The spelling of 103789990 in words is "one hundred three million, seven hundred eighty-nine thousand, nine hundred ninety".