28827425 has 12 divisors (see below), whose sum is σ = 38996016. Its totient is φ = 20965200.

The previous prime is 28827419. The next prime is 28827437. The reversal of 28827425 is 52472882.

It is a happy number.

It is not a de Polignac number, because 28827425 - 2¹⁸ = 28565281 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 52139 + ... + 52688.

It is an arithmetic number, because the mean of its divisors is an integer number (3249668).

Almost surely, 2^28827425 is an apocalyptic number.

28827425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28827425 is a deficient number, since it is larger than the sum of its proper divisors (10168591).

28827425 is a wasteful number, since it uses less digits than its factorization.

28827425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104848 (or 104843 counting only the distinct ones).

The product of its digits is 71680, while the sum is 38.

The square root of 28827425 is about 5369.1177115053. The cubic root of 28827425 is about 306.6210385538.

The spelling of 28827425 in words is "twenty-eight million, eight hundred twenty-seven thousand, four hundred twenty-five".