28454573 has 8 divisors (see below), whose sum is σ = 32552640. Its totient is φ = 24364800.

The previous prime is 28454563. The next prime is 28454581. The reversal of 28454573 is 37545482.

It is a happy number.

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 28454573 - 2⁴ = 28454557 is a prime.

It is a super-2 number, since 2×28454573² = 1619325449224658, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28454513) 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, 9938 + ... + 12476.

It is an arithmetic number, because the mean of its divisors is an integer number (4069080).

Almost surely, 2^28454573 is an apocalyptic number.

It is an amenable number.

28454573 is a deficient number, since it is larger than the sum of its proper divisors (4098067).

28454573 is a wasteful number, since it uses less digits than its factorization.

28454573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4147.

The product of its digits is 134400, while the sum is 38.

The square root of 28454573 is about 5334.2828009021. The cubic root of 28454573 is about 305.2933592410.

Subtracting 28454573 from its reverse (37545482), we obtain a palindrome (9090909).

The spelling of 28454573 in words is "twenty-eight million, four hundred fifty-four thousand, five hundred seventy-three".