28363564 has 12 divisors (see below), whose sum is σ = 49845600. Its totient is φ = 14121968.

The previous prime is 28363547. The next prime is 28363567. The reversal of 28363564 is 46536382.

It is not an unprimeable number, because it can be changed into a prime (28363567) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13879 + ... + 15790.

It is an arithmetic number, because the mean of its divisors is an integer number (4153800).

Almost surely, 2^28363564 is an apocalyptic number.

It is an amenable number.

28363564 is a deficient number, since it is larger than the sum of its proper divisors (21482036).

28363564 is a wasteful number, since it uses less digits than its factorization.

28363564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29912 (or 29910 counting only the distinct ones).

The product of its digits is 103680, while the sum is 37.

The square root of 28363564 is about 5325.7453938393. The cubic root of 28363564 is about 304.9675285685.

It can be divided in two parts, 2836 and 3564, that added together give a square (6400 = 80²).

The spelling of 28363564 in words is "twenty-eight million, three hundred sixty-three thousand, five hundred sixty-four".