28866594 has 16 divisors (see below), whose sum is σ = 58037760. Its totient is φ = 9571440.

The previous prime is 28866589. The next prime is 28866599. The reversal of 28866594 is 49566882.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (28866589) and next prime (28866599).

It is not an unprimeable number, because it can be changed into a prime (28866599) 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, 11449 + ... + 13740.

It is an arithmetic number, because the mean of its divisors is an integer number (3627360).

Almost surely, 2^28866594 is an apocalyptic number.

28866594 is an abundant number, since it is smaller than the sum of its proper divisors (29171166).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28866594 is a wasteful number, since it uses less digits than its factorization.

28866594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25385.

The product of its digits is 829440, while the sum is 48.

The square root of 28866594 is about 5372.7640930903. The cubic root of 28866594 is about 306.7598485476.

The spelling of 28866594 in words is "twenty-eight million, eight hundred sixty-six thousand, five hundred ninety-four".