28838713 has 8 divisors (see below), whose sum is σ = 30742400. Its totient is φ = 26973648.

The previous prime is 28838701. The next prime is 28838737. The reversal of 28838713 is 31783882.

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 28838713 - 2¹⁷ = 28707641 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28838753) 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, 8106 + ... + 11107.

It is an arithmetic number, because the mean of its divisors is an integer number (3842800).

Almost surely, 2^28838713 is an apocalyptic number.

It is an amenable number.

28838713 is a deficient number, since it is larger than the sum of its proper divisors (1903687).

28838713 is a wasteful number, since it uses less digits than its factorization.

28838713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19311.

The product of its digits is 64512, while the sum is 40.

The square root of 28838713 is about 5370.1688055405. The cubic root of 28838713 is about 306.6610546915.

The spelling of 28838713 in words is "twenty-eight million, eight hundred thirty-eight thousand, seven hundred thirteen".