28589998 has 16 divisors (see below), whose sum is σ = 45797760. Its totient is φ = 13356000.

The previous prime is 28589993. The next prime is 28590007. The reversal of 28589998 is 89998582.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28589993) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6153 + ... + 9748.

It is an arithmetic number, because the mean of its divisors is an integer number (2862360).

Almost surely, 2^28589998 is an apocalyptic number.

28589998 is a deficient number, since it is larger than the sum of its proper divisors (17207762).

28589998 is a wasteful number, since it uses less digits than its factorization.

28589998 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15963.

The product of its digits is 3732480, while the sum is 58.

The square root of 28589998 is about 5346.9615670958. The cubic root of 28589998 is about 305.7769245767.

The spelling of 28589998 in words is "twenty-eight million, five hundred eighty-nine thousand, nine hundred ninety-eight".