28798356 has 24 divisors (see below), whose sum is σ = 67322080. Its totient is φ = 9581472.

The previous prime is 28798339. The next prime is 28798361. The reversal of 28798356 is 65389782.

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a congruent number.

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, 5490 + ... + 9366.

Almost surely, 2^28798356 is an apocalyptic number.

It is an amenable number.

28798356 is an abundant number, since it is smaller than the sum of its proper divisors (38523724).

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

28798356 is a wasteful number, since it uses less digits than its factorization.

28798356 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4503 (or 4501 counting only the distinct ones).

The product of its digits is 725760, while the sum is 48.

The square root of 28798356 is about 5366.4099731571. The cubic root of 28798356 is about 306.5179403802.

The spelling of 28798356 in words is "twenty-eight million, seven hundred ninety-eight thousand, three hundred fifty-six".