28322593 has 8 divisors (see below), whose sum is σ = 30735936. Its totient is φ = 25942800.

The previous prime is 28322573. The next prime is 28322599. The reversal of 28322593 is 39522382.

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

It is a de Polignac number, because none of the positive numbers 2^k-28322593 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28322599) 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, 6613 + ... + 10018.

It is an arithmetic number, because the mean of its divisors is an integer number (3841992).

Almost surely, 2^28322593 is an apocalyptic number.

It is an amenable number.

28322593 is a deficient number, since it is larger than the sum of its proper divisors (2413343).

28322593 is a wasteful number, since it uses less digits than its factorization.

28322593 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16775.

The product of its digits is 25920, while the sum is 34.

The square root of 28322593 is about 5321.8974999524. The cubic root of 28322593 is about 304.8206165458.

The spelling of 28322593 in words is "twenty-eight million, three hundred twenty-two thousand, five hundred ninety-three".