28969413 has 16 divisors (see below), whose sum is σ = 42854400. Its totient is φ = 17258480.

The previous prime is 28969403. The next prime is 28969427. The reversal of 28969413 is 31496982.

It is a cyclic number.

It is not a de Polignac number, because 28969413 - 2¹⁰ = 28968389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28969403) 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, 5493 + ... + 9386.

It is an arithmetic number, because the mean of its divisors is an integer number (2678400).

Almost surely, 2^28969413 is an apocalyptic number.

It is an amenable number.

28969413 is a deficient number, since it is larger than the sum of its proper divisors (13884987).

28969413 is a wasteful number, since it uses less digits than its factorization.

28969413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14952.

The product of its digits is 93312, while the sum is 42.

The square root of 28969413 is about 5382.3241262488. The cubic root of 28969413 is about 307.1236296805.

The spelling of 28969413 in words is "twenty-eight million, nine hundred sixty-nine thousand, four hundred thirteen".