28339534 has 4 divisors (see below), whose sum is σ = 42509304. Its totient is φ = 14169766.

The previous prime is 28339513. The next prime is 28339559. The reversal of 28339534 is 43593382.

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

It is a junction number, because it is equal to n+sod(n) for n = 28339493 and 28339502.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7084882 + ... + 7084885.

It is an arithmetic number, because the mean of its divisors is an integer number (10627326).

Almost surely, 2^28339534 is an apocalyptic number.

28339534 is a deficient number, since it is larger than the sum of its proper divisors (14169770).

28339534 is a wasteful number, since it uses less digits than its factorization.

28339534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14169769.

The product of its digits is 77760, while the sum is 37.

The square root of 28339534 is about 5323.4888935735. The cubic root of 28339534 is about 304.8813800125.

The spelling of 28339534 in words is "twenty-eight million, three hundred thirty-nine thousand, five hundred thirty-four".