28682625 has 16 divisors (see below), whose sum is σ = 47728512. Its totient is φ = 15297200.

The previous prime is 28682623. The next prime is 28682671. The reversal of 28682625 is 52628682.

It is not a de Polignac number, because 28682625 - 2¹ = 28682623 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28682623) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37869 + ... + 38618.

It is an arithmetic number, because the mean of its divisors is an integer number (2983032).

Almost surely, 2^28682625 is an apocalyptic number.

28682625 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

28682625 is a deficient number, since it is larger than the sum of its proper divisors (19045887).

28682625 is an equidigital number, since it uses as much as digits as its factorization.

28682625 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76505 (or 76495 counting only the distinct ones).

The product of its digits is 92160, while the sum is 39.

The square root of 28682625 is about 5355.6162110443. The cubic root of 28682625 is about 306.1067912967.

The spelling of 28682625 in words is "twenty-eight million, six hundred eighty-two thousand, six hundred twenty-five".