28693593 has 6 divisors (see below), whose sum is σ = 41446314. Its totient is φ = 19129056.

The previous prime is 28693589. The next prime is 28693597. The reversal of 28693593 is 39539682.

It is an interprime number because it is at equal distance from previous prime (28693589) and next prime (28693597).

It can be written as a sum of positive squares in only one way, i.e., 14653584 + 14040009 = 3828^2 + 3747^2 .

It is not a de Polignac number, because 28693593 - 2² = 28693589 is a prime.

It is not an unprimeable number, because it can be changed into a prime (28693597) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1594080 + ... + 1594097.

It is an arithmetic number, because the mean of its divisors is an integer number (6907719).

Almost surely, 2^28693593 is an apocalyptic number.

It is an amenable number.

28693593 is a deficient number, since it is larger than the sum of its proper divisors (12752721).

28693593 is a wasteful number, since it uses less digits than its factorization.

28693593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3188183 (or 3188180 counting only the distinct ones).

The product of its digits is 349920, while the sum is 45.

The square root of 28693593 is about 5356.6400849786. The cubic root of 28693593 is about 306.1458038979.

The spelling of 28693593 in words is "twenty-eight million, six hundred ninety-three thousand, five hundred ninety-three".