28492825 has 6 divisors (see below), whose sum is σ = 35331134. Its totient is φ = 22794240.

The previous prime is 28492817. The next prime is 28492843. The reversal of 28492825 is 52829482.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1990921 + 26501904 = 1411^2 + 5148^2 .

It is not a de Polignac number, because 28492825 - 2³ = 28492817 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 569832 + ... + 569881.

Almost surely, 2^28492825 is an apocalyptic number.

28492825 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28492825 is a deficient number, since it is larger than the sum of its proper divisors (6838309).

28492825 is a wasteful number, since it uses less digits than its factorization.

28492825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1139723 (or 1139718 counting only the distinct ones).

The product of its digits is 92160, while the sum is 40.

The square root of 28492825 is about 5337.8670833958. The cubic root of 28492825 is about 305.4301017892.

The spelling of 28492825 in words is "twenty-eight million, four hundred ninety-two thousand, eight hundred twenty-five".