28825629 has 16 divisors (see below), whose sum is σ = 45342720. Its totient is φ = 15940080.

The previous prime is 28825619. The next prime is 28825661. The reversal of 28825629 is 92652882.

It is not a de Polignac number, because 28825629 - 2⁵ = 28825597 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28825619) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21489 + ... + 22790.

It is an arithmetic number, because the mean of its divisors is an integer number (2833920).

Almost surely, 2^28825629 is an apocalyptic number.

It is an amenable number.

28825629 is a deficient number, since it is larger than the sum of its proper divisors (16517091).

28825629 is a wasteful number, since it uses less digits than its factorization.

28825629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44320.

The product of its digits is 138240, while the sum is 42.

The square root of 28825629 is about 5368.9504560947. The cubic root of 28825629 is about 306.6146707424.

The spelling of 28825629 in words is "twenty-eight million, eight hundred twenty-five thousand, six hundred twenty-nine".