28023598 has 4 divisors (see below), whose sum is σ = 42035400. Its totient is φ = 14011798.

The previous prime is 28023587. The next prime is 28023617. The reversal of 28023598 is 89532082.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7005898 + ... + 7005901.

It is an arithmetic number, because the mean of its divisors is an integer number (10508850).

Almost surely, 2^28023598 is an apocalyptic number.

28023598 is a deficient number, since it is larger than the sum of its proper divisors (14011802).

28023598 is a wasteful number, since it uses less digits than its factorization.

28023598 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14011801.

The product of its (nonzero) digits is 34560, while the sum is 37.

The square root of 28023598 is about 5293.7319539244. The cubic root of 28023598 is about 303.7441796939.

It can be divided in two parts, 2802 and 3598, that added together give a square (6400 = 80²).

The spelling of 28023598 in words is "twenty-eight million, twenty-three thousand, five hundred ninety-eight".