28422653 has 4 divisors (see below), whose sum is σ = 32483040. Its totient is φ = 24362268.

The previous prime is 28422643. The next prime is 28422661. The reversal of 28422653 is 35622482.

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 not a de Polignac number, because 28422653 - 2²⁰ = 27374077 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 (28422643) 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, 2030183 + ... + 2030196.

It is an arithmetic number, because the mean of its divisors is an integer number (8120760).

Almost surely, 2^28422653 is an apocalyptic number.

It is an amenable number.

28422653 is a deficient number, since it is larger than the sum of its proper divisors (4060387).

28422653 is an equidigital number, since it uses as much as digits as its factorization.

28422653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4060386.

The product of its digits is 23040, while the sum is 32.

The square root of 28422653 is about 5331.2899939883. The cubic root of 28422653 is about 305.1791583798.

The spelling of 28422653 in words is "twenty-eight million, four hundred twenty-two thousand, six hundred fifty-three".