28964811 has 8 divisors (see below), whose sum is σ = 39274560. Its totient is φ = 18982472.

The previous prime is 28964809. The next prime is 28964833. The reversal of 28964811 is 11846982.

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 28964811 - 2¹ = 28964809 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 28964811.

It is not an unprimeable number, because it can be changed into a prime (28964851) 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, 81645 + ... + 81998.

It is an arithmetic number, because the mean of its divisors is an integer number (4909320).

Almost surely, 2^28964811 is an apocalyptic number.

28964811 is a deficient number, since it is larger than the sum of its proper divisors (10309749).

28964811 is a wasteful number, since it uses less digits than its factorization.

28964811 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163705.

The product of its digits is 27648, while the sum is 39.

The square root of 28964811 is about 5381.8965987837. The cubic root of 28964811 is about 307.1073658854.

The spelling of 28964811 in words is "twenty-eight million, nine hundred sixty-four thousand, eight hundred eleven".