28339535 has 8 divisors (see below), whose sum is σ = 38865696. Its totient is φ = 19432800.

The previous prime is 28339513. The next prime is 28339559. The reversal of 28339535 is 53593382.

It is a happy number.

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

It is not a de Polignac number, because 28339535 - 2¹⁰ = 28338511 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 404816 + ... + 404885.

It is an arithmetic number, because the mean of its divisors is an integer number (4858212).

Almost surely, 2^28339535 is an apocalyptic number.

28339535 is a deficient number, since it is larger than the sum of its proper divisors (10526161).

28339535 is an equidigital number, since it uses as much as digits as its factorization.

28339535 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 809713.

The product of its digits is 97200, while the sum is 38.

The square root of 28339535 is about 5323.4889874968. The cubic root of 28339535 is about 304.8813835985.

It can be divided in two parts, 28 and 339535, that multiplied together give a triangular number (9506980 = T₄₃₆₀).

The spelling of 28339535 in words is "twenty-eight million, three hundred thirty-nine thousand, five hundred thirty-five".