28985026 has 16 divisors (see below), whose sum is σ = 50008896. Its totient is φ = 12342096.

The previous prime is 28985009. The next prime is 28985027. The reversal of 28985026 is 62058982.

It is a self number, because there is not a number n which added to its sum of digits gives 28985026.

It is not an unprimeable number, because it can be changed into a prime (28985027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4396 + ... + 8791.

It is an arithmetic number, because the mean of its divisors is an integer number (3125556).

Almost surely, 2^28985026 is an apocalyptic number.

28985026 is the 4396-th pentagonal number.

28985026 is a deficient number, since it is larger than the sum of its proper divisors (21023870).

28985026 is a wasteful number, since it uses less digits than its factorization.

28985026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13353.

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 28985026 is about 5383.7743266225. The cubic root of 28985026 is about 307.1787943013.

The spelling of 28985026 in words is "twenty-eight million, nine hundred eighty-five thousand, twenty-six".