28825417 has 4 divisors (see below), whose sum is σ = 30078720. Its totient is φ = 27572116.

The previous prime is 28825411. The next prime is 28825427. The reversal of 28825417 is 71452882.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28825417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28825411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 626617 + ... + 626662.

It is an arithmetic number, because the mean of its divisors is an integer number (7519680).

Almost surely, 2^28825417 is an apocalyptic number.

It is an amenable number.

28825417 is a deficient number, since it is larger than the sum of its proper divisors (1253303).

28825417 is a wasteful number, since it uses less digits than its factorization.

28825417 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1253302.

The product of its digits is 35840, while the sum is 37.

The square root of 28825417 is about 5368.9307129074. The cubic root of 28825417 is about 306.6139190679.

The spelling of 28825417 in words is "twenty-eight million, eight hundred twenty-five thousand, four hundred seventeen".