28622753 has 4 divisors (see below), whose sum is σ = 28648368. Its totient is φ = 28597140.

The previous prime is 28622743. The next prime is 28622771. The reversal of 28622753 is 35722682.

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: 35722682 = 2 ⋅17861341.

It is a cyclic number.

It is not a de Polignac number, because 28622753 - 2⁶ = 28622689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28622723) 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, 11051 + ... + 13392.

It is an arithmetic number, because the mean of its divisors is an integer number (7162092).

Almost surely, 2^28622753 is an apocalyptic number.

It is an amenable number.

28622753 is a deficient number, since it is larger than the sum of its proper divisors (25615).

28622753 is a wasteful number, since it uses less digits than its factorization.

28622753 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25614.

The product of its digits is 40320, while the sum is 35.

The square root of 28622753 is about 5350.0236448076. The cubic root of 28622753 is about 305.8936542183.

The spelling of 28622753 in words is "twenty-eight million, six hundred twenty-two thousand, seven hundred fifty-three".