28957608 has 64 divisors (see below), whose sum is σ = 81504000. Its totient is φ = 9524736.

The previous prime is 28957561. The next prime is 28957637. The reversal of 28957608 is 80675982.

It is a super-2 number, since 2×28957608² = 1677086122163328, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16216 + ... + 17912.

It is an arithmetic number, because the mean of its divisors is an integer number (1273500).

Almost surely, 2^28957608 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28957608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40752000).

28957608 is an abundant number, since it is smaller than the sum of its proper divisors (52546392).

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

28957608 is a wasteful number, since it uses less digits than its factorization.

28957608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1791 (or 1781 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 28957608 is about 5381.2273692904. The cubic root of 28957608 is about 307.0819065127.

The spelling of 28957608 in words is "twenty-eight million, nine hundred fifty-seven thousand, six hundred eight".