28917353 has 4 divisors (see below), whose sum is σ = 29198208. Its totient is φ = 28636500.

The previous prime is 28917347. The next prime is 28917403. The reversal of 28917353 is 35371982.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 28917353 - 2⁴ = 28917337 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28917253) 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, 140273 + ... + 140478.

It is an arithmetic number, because the mean of its divisors is an integer number (7299552).

Almost surely, 2^28917353 is an apocalyptic number.

It is an amenable number.

28917353 is a deficient number, since it is larger than the sum of its proper divisors (280855).

28917353 is a wasteful number, since it uses less digits than its factorization.

28917353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 280854.

The product of its digits is 45360, while the sum is 38.

The square root of 28917353 is about 5377.4857507947. The cubic root of 28917353 is about 306.9395453681.

The spelling of 28917353 in words is "twenty-eight million, nine hundred seventeen thousand, three hundred fifty-three".