28934629 has 16 divisors (see below), whose sum is σ = 31773168. Its totient is φ = 26237952.

The previous prime is 28934627. The next prime is 28934651. The reversal of 28934629 is 92643982.

It can be written as a sum of positive squares in 8 ways, for example, as 7756225 + 21178404 = 2785^2 + 4602^2 .

It is a cyclic number.

It is not a de Polignac number, because 28934629 - 2¹ = 28934627 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 (28934627) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98607 + ... + 98899.

It is an arithmetic number, because the mean of its divisors is an integer number (1985823).

Almost surely, 2^28934629 is an apocalyptic number.

It is an amenable number.

28934629 is a deficient number, since it is larger than the sum of its proper divisors (2838539).

28934629 is a wasteful number, since it uses less digits than its factorization.

28934629 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 504.

The product of its digits is 186624, while the sum is 43.

The square root of 28934629 is about 5379.0918378477. The cubic root of 28934629 is about 307.0006578305. Note that the first 3 decimals are identical.

The spelling of 28934629 in words is "twenty-eight million, nine hundred thirty-four thousand, six hundred twenty-nine".