28798554 has 16 divisors (see below), whose sum is σ = 57656448. Its totient is φ = 9589632.

The previous prime is 28798541. The next prime is 28798579. The reversal of 28798554 is 45589782.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6154 + ... + 9770.

It is an arithmetic number, because the mean of its divisors is an integer number (3603528).

Almost surely, 2^28798554 is an apocalyptic number.

28798554 is an abundant number, since it is smaller than the sum of its proper divisors (28857894).

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

28798554 is a wasteful number, since it uses less digits than its factorization.

28798554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4949.

The product of its digits is 806400, while the sum is 48.

The square root of 28798554 is about 5366.4284212128. The cubic root of 28798554 is about 306.5186428556.

The spelling of 28798554 in words is "twenty-eight million, seven hundred ninety-eight thousand, five hundred fifty-four".