28613359 has 4 divisors (see below), whose sum is σ = 28624104. Its totient is φ = 28602616.

The previous prime is 28613339. The next prime is 28613369. The reversal of 28613359 is 95331682.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 28613359 - 2¹¹ = 28611311 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 (28613339) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1944 + ... + 7810.

It is an arithmetic number, because the mean of its divisors is an integer number (7156026).

Almost surely, 2^28613359 is an apocalyptic number.

28613359 is a deficient number, since it is larger than the sum of its proper divisors (10745).

28613359 is an equidigital number, since it uses as much as digits as its factorization.

28613359 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10744.

The product of its digits is 38880, while the sum is 37.

The square root of 28613359 is about 5349.1456327156. The cubic root of 28613359 is about 305.8601857464.

The spelling of 28613359 in words is "twenty-eight million, six hundred thirteen thousand, three hundred fifty-nine".