28713455 has 16 divisors (see below), whose sum is σ = 35331744. Its totient is φ = 22394880.

The previous prime is 28713449. The next prime is 28713467. The reversal of 28713455 is 55431782.

It is a happy number.

It is not a de Polignac number, because 28713455 - 2¹⁶ = 28647919 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35000 + ... + 35810.

It is an arithmetic number, because the mean of its divisors is an integer number (2208234).

Almost surely, 2^28713455 is an apocalyptic number.

28713455 is a deficient number, since it is larger than the sum of its proper divisors (6618289).

28713455 is an equidigital number, since it uses as much as digits as its factorization.

28713455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 986.

The product of its digits is 33600, while the sum is 35.

The square root of 28713455 is about 5358.4937249193. The cubic root of 28713455 is about 306.2164266958.

The spelling of 28713455 in words is "twenty-eight million, seven hundred thirteen thousand, four hundred fifty-five".