28103590 has 8 divisors (see below), whose sum is σ = 50586480. Its totient is φ = 11241432.

The previous prime is 28103563. The next prime is 28103591. The reversal of 28103590 is 9530182.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28103591) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1405170 + ... + 1405189.

It is an arithmetic number, because the mean of its divisors is an integer number (6323310).

Almost surely, 2^28103590 is an apocalyptic number.

28103590 is a deficient number, since it is larger than the sum of its proper divisors (22482890).

28103590 is a wasteful number, since it uses less digits than its factorization.

28103590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2810366.

The product of its (nonzero) digits is 2160, while the sum is 28.

The square root of 28103590 is about 5301.2819204415. The cubic root of 28103590 is about 304.0329128147.

It can be divided in two parts, 2810 and 3590, that added together give a square (6400 = 80²).

The spelling of 28103590 in words is "twenty-eight million, one hundred three thousand, five hundred ninety".