28996253 has 24 divisors (see below), whose sum is σ = 35366688. Its totient is φ = 23436000.

The previous prime is 28996249. The next prime is 28996309. The reversal of 28996253 is 35269982.

It is not a de Polignac number, because 28996253 - 2² = 28996249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28996243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 137318 + ... + 137528.

It is an arithmetic number, because the mean of its divisors is an integer number (1473612).

Almost surely, 2^28996253 is an apocalyptic number.

It is an amenable number.

28996253 is a deficient number, since it is larger than the sum of its proper divisors (6370435).

28996253 is a wasteful number, since it uses less digits than its factorization.

28996253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 297 (or 266 counting only the distinct ones).

The product of its digits is 233280, while the sum is 44.

The square root of 28996253 is about 5384.8168956799. The cubic root of 28996253 is about 307.2184498479.

The spelling of 28996253 in words is "twenty-eight million, nine hundred ninety-six thousand, two hundred fifty-three".