28922499 has 12 divisors (see below), whose sum is σ = 41870400. Its totient is φ = 19238544.

The previous prime is 28922497. The next prime is 28922501. The reversal of 28922499 is 99422982.

It is an interprime number because it is at equal distance from previous prime (28922497) and next prime (28922501).

It is not a de Polignac number, because 28922499 - 2¹ = 28922497 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (28922497) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 957 + ... + 7665.

It is an arithmetic number, because the mean of its divisors is an integer number (3489200).

Almost surely, 2^28922499 is an apocalyptic number.

28922499 is a deficient number, since it is larger than the sum of its proper divisors (12947901).

28922499 is a wasteful number, since it uses less digits than its factorization.

28922499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7194 (or 7191 counting only the distinct ones).

The product of its digits is 186624, while the sum is 45.

The square root of 28922499 is about 5377.9642059054. The cubic root of 28922499 is about 306.9577514745.

The spelling of 28922499 in words is "twenty-eight million, nine hundred twenty-two thousand, four hundred ninety-nine".