28597268 has 12 divisors (see below), whose sum is σ = 57194592. Its totient is φ = 12255960.

The previous prime is 28597253. The next prime is 28597273. The reversal of 28597268 is 86279582.

28597268 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 510638 + ... + 510693.

It is an arithmetic number, because the mean of its divisors is an integer number (4766216).

Almost surely, 2^28597268 is an apocalyptic number.

28597268 is a gapful number since it is divisible by the number (28) formed by its first and last digit.

It is an amenable number.

28597268 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28597268 is a wasteful number, since it uses less digits than its factorization.

28597268 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1021342 (or 1021340 counting only the distinct ones).

The product of its digits is 483840, while the sum is 47.

The square root of 28597268 is about 5347.6413492305. The cubic root of 28597268 is about 305.8028405147.

The spelling of 28597268 in words is "twenty-eight million, five hundred ninety-seven thousand, two hundred sixty-eight".