28135562 has 16 divisors (see below), whose sum is σ = 51942912. Its totient is φ = 11130480.

The previous prime is 28135501. The next prime is 28135567. The reversal of 28135562 is 26553182.

It is not an unprimeable number, because it can be changed into a prime (28135567) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 77114 + ... + 77477.

It is an arithmetic number, because the mean of its divisors is an integer number (3246432).

Almost surely, 2^28135562 is an apocalyptic number.

28135562 is a deficient number, since it is larger than the sum of its proper divisors (23807350).

28135562 is a wasteful number, since it uses less digits than its factorization.

28135562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 154613.

The product of its digits is 14400, while the sum is 32.

The square root of 28135562 is about 5304.2965603367. The cubic root of 28135562 is about 304.1481632913.

The spelling of 28135562 in words is "twenty-eight million, one hundred thirty-five thousand, five hundred sixty-two".