28598131 has 8 divisors (see below), whose sum is σ = 31597344. Its totient is φ = 25745280.

The previous prime is 28598123. The next prime is 28598149. The reversal of 28598131 is 13189582.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28598131 - 2³ = 28598123 is a prime.

It is a super-2 number, since 2×28598131² = 1635706193386322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28596131) 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, 36180 + ... + 36961.

It is an arithmetic number, because the mean of its divisors is an integer number (3949668).

Almost surely, 2^28598131 is an apocalyptic number.

28598131 is a deficient number, since it is larger than the sum of its proper divisors (2999213).

28598131 is a wasteful number, since it uses less digits than its factorization.

28598131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73181.

The product of its digits is 17280, while the sum is 37.

The square root of 28598131 is about 5347.7220384010. The cubic root of 28598131 is about 305.8059166267.

The spelling of 28598131 in words is "twenty-eight million, five hundred ninety-eight thousand, one hundred thirty-one".