28902159 has 48 divisors (see below), whose sum is σ = 51970464. Its totient is φ = 15206400.

The previous prime is 28902157. The next prime is 28902169. The reversal of 28902159 is 95120982.

It is not a de Polignac number, because 28902159 - 2¹ = 28902157 is a prime.

It is a super-2 number, since 2×28902159² = 1670669589722562, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28902157) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 21219 + ... + 22539.

It is an arithmetic number, because the mean of its divisors is an integer number (1082718).

Almost surely, 2^28902159 is an apocalyptic number.

28902159 is a deficient number, since it is larger than the sum of its proper divisors (23068305).

28902159 is a wasteful number, since it uses less digits than its factorization.

28902159 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368 (or 1365 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 36.

The square root of 28902159 is about 5376.0728231675. The cubic root of 28902159 is about 306.8857776933.

The spelling of 28902159 in words is "twenty-eight million, nine hundred two thousand, one hundred fifty-nine".