28614539 has 4 divisors (see below), whose sum is σ = 28643640. Its totient is φ = 28585440.

The previous prime is 28614529. The next prime is 28614557. The reversal of 28614539 is 93541682.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28614539 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (28614529) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13022 + ... + 15059.

It is an arithmetic number, because the mean of its divisors is an integer number (7160910).

Almost surely, 2^28614539 is an apocalyptic number.

28614539 is a deficient number, since it is larger than the sum of its proper divisors (29101).

28614539 is a wasteful number, since it uses less digits than its factorization.

28614539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29100.

The product of its digits is 51840, while the sum is 38.

The square root of 28614539 is about 5349.2559295663. The cubic root of 28614539 is about 305.8643901934.

The spelling of 28614539 in words is "twenty-eight million, six hundred fourteen thousand, five hundred thirty-nine".