28816453 has 8 divisors (see below), whose sum is σ = 29811456. Its totient is φ = 27825600.

The previous prime is 28816423. The next prime is 28816457. The reversal of 28816453 is 35461882.

It is a happy number.

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

It is not a de Polignac number, because 28816453 - 2⁵ = 28816421 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 (28816457) 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, 20493 + ... + 21853.

It is an arithmetic number, because the mean of its divisors is an integer number (3726432).

Almost surely, 2^28816453 is an apocalyptic number.

It is an amenable number.

28816453 is a deficient number, since it is larger than the sum of its proper divisors (995003).

28816453 is a wasteful number, since it uses less digits than its factorization.

28816453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2075.

The product of its digits is 46080, while the sum is 37.

The square root of 28816453 is about 5368.0958448970. The cubic root of 28816453 is about 306.5821326283.

The spelling of 28816453 in words is "twenty-eight million, eight hundred sixteen thousand, four hundred fifty-three".