28436534 has 32 divisors (see below), whose sum is σ = 50512896. Its totient is φ = 11753280.

The previous prime is 28436519. The next prime is 28436537. The reversal of 28436534 is 43563482.

It is a Smith number, since the sum of its digits (35) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a junction number, because it is equal to n+sod(n) for n = 28436494 and 28436503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28436537) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 61187 + ... + 61649.

It is an arithmetic number, because the mean of its divisors is an integer number (1578528).

Almost surely, 2^28436534 is an apocalyptic number.

28436534 is a deficient number, since it is larger than the sum of its proper divisors (22076362).

28436534 is a wasteful number, since it uses less digits than its factorization.

28436534 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620.

The product of its digits is 69120, while the sum is 35.

The square root of 28436534 is about 5332.5916775992. The cubic root of 28436534 is about 305.2288312289.

The spelling of 28436534 in words is "twenty-eight million, four hundred thirty-six thousand, five hundred thirty-four".