28454773 has 4 divisors (see below), whose sum is σ = 28815040. Its totient is φ = 28094508.

The previous prime is 28454717. The next prime is 28454791. The reversal of 28454773 is 37745482.

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 28454773 - 2²¹ = 26357621 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 (28452773) 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, 180015 + ... + 180172.

It is an arithmetic number, because the mean of its divisors is an integer number (7203760).

Almost surely, 2^28454773 is an apocalyptic number.

It is an amenable number.

28454773 is a deficient number, since it is larger than the sum of its proper divisors (360267).

28454773 is an equidigital number, since it uses as much as digits as its factorization.

28454773 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360266.

The product of its digits is 188160, while the sum is 40.

The square root of 28454773 is about 5334.3015475318. The cubic root of 28454773 is about 305.2940745159.

The spelling of 28454773 in words is "twenty-eight million, four hundred fifty-four thousand, seven hundred seventy-three".