28334534 has 4 divisors (see below), whose sum is σ = 42501804. Its totient is φ = 14167266.

The previous prime is 28334533. The next prime is 28334543. The reversal of 28334534 is 43543382.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43543382 = 2 ⋅21771691.

It is a self number, because there is not a number n which added to its sum of digits gives 28334534.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28334531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7083632 + ... + 7083635.

It is an arithmetic number, because the mean of its divisors is an integer number (10625451).

Almost surely, 2^28334534 is an apocalyptic number.

28334534 is a deficient number, since it is larger than the sum of its proper divisors (14167270).

28334534 is a wasteful number, since it uses less digits than its factorization.

28334534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14167269.

The product of its digits is 34560, while the sum is 32.

The square root of 28334534 is about 5323.0192560238. The cubic root of 28334534 is about 304.8634486830.

The spelling of 28334534 in words is "twenty-eight million, three hundred thirty-four thousand, five hundred thirty-four".