28522679 has 4 divisors (see below), whose sum is σ = 28541976. Its totient is φ = 28503384.

The previous prime is 28522673. The next prime is 28522699. The reversal of 28522679 is 97622582.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97622582 = 2 ⋅48811291.

It is a cyclic number.

It is not a de Polignac number, because 28522679 - 2²⁰ = 27474103 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 (28522673) 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, 7229 + ... + 10454.

It is an arithmetic number, because the mean of its divisors is an integer number (7135494).

Almost surely, 2^28522679 is an apocalyptic number.

28522679 is a deficient number, since it is larger than the sum of its proper divisors (19297).

28522679 is a wasteful number, since it uses less digits than its factorization.

28522679 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19296.

The product of its digits is 120960, while the sum is 41.

The square root of 28522679 is about 5340.6627865837. The cubic root of 28522679 is about 305.5367383135.

The spelling of 28522679 in words is "twenty-eight million, five hundred twenty-two thousand, six hundred seventy-nine".