28877583 has 16 divisors (see below), whose sum is σ = 44727296. Its totient is φ = 16230240.

The previous prime is 28877573. The next prime is 28877593. The reversal of 28877583 is 38577882.

It is an interprime number because it is at equal distance from previous prime (28877573) and next prime (28877593).

It is not a de Polignac number, because 28877583 - 2⁴ = 28877567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28877573) 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, 9991 + ... + 12552.

It is an arithmetic number, because the mean of its divisors is an integer number (2795456).

Almost surely, 2^28877583 is an apocalyptic number.

28877583 is a deficient number, since it is larger than the sum of its proper divisors (15849713).

28877583 is a wasteful number, since it uses less digits than its factorization.

28877583 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22614.

The product of its digits is 752640, while the sum is 48.

The square root of 28877583 is about 5373.7866537480. The cubic root of 28877583 is about 306.7987696191.

The spelling of 28877583 in words is "twenty-eight million, eight hundred seventy-seven thousand, five hundred eighty-three".