28024573 has 4 divisors (see below), whose sum is σ = 28165600. Its totient is φ = 27883548.

The previous prime is 28024567. The next prime is 28024613. The reversal of 28024573 is 37542082.

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, and also an emirpimes, since its reverse is a distinct semiprime: 37542082 = 2 ⋅18771041.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28024573 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 (28024523) 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, 70215 + ... + 70612.

It is an arithmetic number, because the mean of its divisors is an integer number (7041400).

Almost surely, 2^28024573 is an apocalyptic number.

It is an amenable number.

28024573 is a deficient number, since it is larger than the sum of its proper divisors (141027).

28024573 is a wasteful number, since it uses less digits than its factorization.

28024573 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141026.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 28024573 is about 5293.8240431658. The cubic root of 28024573 is about 303.7477022864.

The spelling of 28024573 in words is "twenty-eight million, twenty-four thousand, five hundred seventy-three".