28413583 has 18 divisors (see below), whose sum is σ = 32226432. Its totient is φ = 25031160.

The previous prime is 28413563. The next prime is 28413587. The reversal of 28413583 is 38531482.

It is a happy number.

It is not a de Polignac number, because 28413583 - 2⁵ = 28413551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28413587) by changing a digit.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 223666 + ... + 223792.

Almost surely, 2^28413583 is an apocalyptic number.

28413583 is a deficient number, since it is larger than the sum of its proper divisors (3812849).

28413583 is a wasteful number, since it uses less digits than its factorization.

28413583 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 235 (or 181 counting only the distinct ones).

The product of its digits is 23040, while the sum is 34.

The square root of 28413583 is about 5330.4392877135. The cubic root of 28413583 is about 305.1466928501.

The spelling of 28413583 in words is "twenty-eight million, four hundred thirteen thousand, five hundred eighty-three".