28869179 has 8 divisors (see below), whose sum is σ = 30706128. Its totient is φ = 27047680.

The previous prime is 28869173. The next prime is 28869187. The reversal of 28869179 is 97196882.

28869179 is nontrivially palindromic in base 2.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 28869179 - 2²⁰ = 27820603 is a prime.

It is a super-2 number, since 2×28869179² = 1666858992268082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28869173) 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, 119 + ... + 7599.

It is an arithmetic number, because the mean of its divisors is an integer number (3838266).

Almost surely, 2^28869179 is an apocalyptic number.

28869179 is a deficient number, since it is larger than the sum of its proper divisors (1836949).

28869179 is a wasteful number, since it uses less digits than its factorization.

28869179 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7725.

The product of its digits is 435456, while the sum is 50.

The square root of 28869179 is about 5373.0046528921. The cubic root of 28869179 is about 306.7690050433.

Subtracting from 28869179 its sum of digits (50), we obtain a square (28869129 = 5373²).

The spelling of 28869179 in words is "twenty-eight million, eight hundred sixty-nine thousand, one hundred seventy-nine".