28714590 has 48 divisors (see below), whose sum is σ = 76684608. Its totient is φ = 7449408.

The previous prime is 28714589. The next prime is 28714639. The reversal of 28714590 is 9541782.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 982 + ... + 7641.

It is an arithmetic number, because the mean of its divisors is an integer number (1597596).

Almost surely, 2^28714590 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28714590, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38342304).

28714590 is an abundant number, since it is smaller than the sum of its proper divisors (47970018).

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

28714590 is a wasteful number, since it uses less digits than its factorization.

28714590 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8673 (or 8670 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 28714590 is about 5358.5996305005. The cubic root of 28714590 is about 306.2204614020.

The spelling of 28714590 in words is "twenty-eight million, seven hundred fourteen thousand, five hundred ninety".