28899594 has 12 divisors (see below), whose sum is σ = 62615826. Its totient is φ = 9633192.

The previous prime is 28899587. The next prime is 28899601. The reversal of 28899594 is 49599882.

It is an interprime number because it is at equal distance from previous prime (28899587) and next prime (28899601).

It can be written as a sum of positive squares in only one way, i.e., 28483569 + 416025 = 5337^2 + 645^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 28899594.

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 802749 + ... + 802784.

Almost surely, 2^28899594 is an apocalyptic number.

28899594 is an abundant number, since it is smaller than the sum of its proper divisors (33716232).

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

28899594 is a wasteful number, since it uses less digits than its factorization.

28899594 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1605541 (or 1605538 counting only the distinct ones).

The product of its digits is 1866240, while the sum is 54.

The square root of 28899594 is about 5375.8342608380. The cubic root of 28899594 is about 306.8766989562.

The spelling of 28899594 in words is "twenty-eight million, eight hundred ninety-nine thousand, five hundred ninety-four".