28797265 has 32 divisors (see below), whose sum is σ = 41803776. Its totient is φ = 18617280.

The previous prime is 28797239. The next prime is 28797277. The reversal of 28797265 is 56279782.

It is not a de Polignac number, because 28797265 - 2⁹ = 28796753 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 66600 + ... + 67030.

It is an arithmetic number, because the mean of its divisors is an integer number (1306368).

Almost surely, 2^28797265 is an apocalyptic number.

It is an amenable number.

28797265 is a deficient number, since it is larger than the sum of its proper divisors (13006511).

28797265 is a wasteful number, since it uses less digits than its factorization.

28797265 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549.

The product of its digits is 423360, while the sum is 46.

The square root of 28797265 is about 5366.3083213695. The cubic root of 28797265 is about 306.5140696118.

The spelling of 28797265 in words is "twenty-eight million, seven hundred ninety-seven thousand, two hundred sixty-five".