28597000 has 32 divisors (see below), whose sum is σ = 66919320. Its totient is φ = 11438400.

The previous prime is 28596989. The next prime is 28597001. The reversal of 28597000 is 79582.

It can be written as a sum of positive squares in 4 ways, for example, as 18369796 + 10227204 = 4286^2 + 3198^2 .

It is not an unprimeable number, because it can be changed into a prime (28597001) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 13299 + ... + 15298.

Almost surely, 2^28597000 is an apocalyptic number.

28597000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

28597000 is an abundant number, since it is smaller than the sum of its proper divisors (38322320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28597000 is a wasteful number, since it uses less digits than its factorization.

28597000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28618 (or 28604 counting only the distinct ones).

The product of its (nonzero) digits is 5040, while the sum is 31.

The square root of 28597000 is about 5347.6162913956. The cubic root of 28597000 is about 305.8018852321.

The spelling of 28597000 in words is "twenty-eight million, five hundred ninety-seven thousand".