28734253 has 8 divisors (see below), whose sum is σ = 29145600. Its totient is φ = 28325808.

The previous prime is 28734227. The next prime is 28734257. The reversal of 28734253 is 35243782.

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

It is a cyclic number.

It is not a de Polignac number, because 28734253 - 2⁵ = 28734221 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 (28734257) 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, 25500 + ... + 26602.

It is an arithmetic number, because the mean of its divisors is an integer number (3643200).

Almost surely, 2^28734253 is an apocalyptic number.

It is an amenable number.

28734253 is a deficient number, since it is larger than the sum of its proper divisors (411347).

28734253 is a wasteful number, since it uses less digits than its factorization.

28734253 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1451.

The product of its digits is 40320, while the sum is 34.

The square root of 28734253 is about 5360.4340309344. The cubic root of 28734253 is about 306.2903427070.

The spelling of 28734253 in words is "twenty-eight million, seven hundred thirty-four thousand, two hundred fifty-three".