28425927 has 4 divisors (see below), whose sum is σ = 37901240. Its totient is φ = 18950616.

The previous prime is 28425883. The next prime is 28425959. The reversal of 28425927 is 72952482.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 28425927 - 2⁶ = 28425863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28425127) 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, 4737652 + ... + 4737657.

It is an arithmetic number, because the mean of its divisors is an integer number (9475310).

Almost surely, 2^28425927 is an apocalyptic number.

28425927 is a deficient number, since it is larger than the sum of its proper divisors (9475313).

28425927 is an equidigital number, since it uses as much as digits as its factorization.

28425927 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9475312.

The product of its digits is 80640, while the sum is 39.

The square root of 28425927 is about 5331.5970402873. The cubic root of 28425927 is about 305.1908757730.

The spelling of 28425927 in words is "twenty-eight million, four hundred twenty-five thousand, nine hundred twenty-seven".