28974369 has 8 divisors (see below), whose sum is σ = 39287520. Its totient is φ = 18988736.

The previous prime is 28974349. The next prime is 28974377. The reversal of 28974369 is 96347982.

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

It is a cyclic number.

It is not a de Polignac number, because 28974369 - 2⁷ = 28974241 is a prime.

It is a super-2 number, since 2×28974369² = 1679028117896322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (28974349) 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, 81672 + ... + 82025.

It is an arithmetic number, because the mean of its divisors is an integer number (4910940).

Almost surely, 2^28974369 is an apocalyptic number.

It is an amenable number.

28974369 is a deficient number, since it is larger than the sum of its proper divisors (10313151).

28974369 is a wasteful number, since it uses less digits than its factorization.

28974369 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163759.

The product of its digits is 653184, while the sum is 48.

The square root of 28974369 is about 5382.7845024671. The cubic root of 28974369 is about 307.1411426106.

The spelling of 28974369 in words is "twenty-eight million, nine hundred seventy-four thousand, three hundred sixty-nine".