28682425 has 6 divisors (see below), whose sum is σ = 35566238. Its totient is φ = 22945920.

The previous prime is 28682413. The next prime is 28682431. The reversal of 28682425 is 52428682.

It can be written as a sum of positive squares in 3 ways, for example, as 9916201 + 18766224 = 3149^2 + 4332^2 .

It is not a de Polignac number, because 28682425 - 2¹⁷ = 28551353 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 573624 + ... + 573673.

Almost surely, 2^28682425 is an apocalyptic number.

28682425 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28682425 is a deficient number, since it is larger than the sum of its proper divisors (6883813).

28682425 is a wasteful number, since it uses less digits than its factorization.

28682425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1147307 (or 1147302 counting only the distinct ones).

The product of its digits is 61440, while the sum is 37.

The square root of 28682425 is about 5355.5975390240. The cubic root of 28682425 is about 306.1060798148.

The spelling of 28682425 in words is "twenty-eight million, six hundred eighty-two thousand, four hundred twenty-five".