28889595 has 64 divisors (see below), whose sum is σ = 61824000. Its totient is φ = 12503808.

The previous prime is 28889573. The next prime is 28889599. The reversal of 28889595 is 59598882.

It is not a de Polignac number, because 28889595 - 2⁸ = 28889339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28889599) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 17151 + ... + 18759.

It is an arithmetic number, because the mean of its divisors is an integer number (966000).

Almost surely, 2^28889595 is an apocalyptic number.

28889595 is an abundant number, since it is smaller than the sum of its proper divisors (32934405).

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

28889595 is a wasteful number, since it uses less digits than its factorization.

28889595 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1649 (or 1643 counting only the distinct ones).

The product of its digits is 2073600, while the sum is 54.

The square root of 28889595 is about 5374.9041851925. The cubic root of 28889595 is about 306.8413026796.

The spelling of 28889595 in words is "twenty-eight million, eight hundred eighty-nine thousand, five hundred ninety-five".