28555862 has 4 divisors (see below), whose sum is σ = 42833796. Its totient is φ = 14277930.

The previous prime is 28555843. The next prime is 28555871. The reversal of 28555862 is 26855582.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7138964 + ... + 7138967.

It is an arithmetic number, because the mean of its divisors is an integer number (10708449).

Almost surely, 2^28555862 is an apocalyptic number.

28555862 is a deficient number, since it is larger than the sum of its proper divisors (14277934).

28555862 is a wasteful number, since it uses less digits than its factorization.

28555862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14277933.

The product of its digits is 192000, while the sum is 41.

The square root of 28555862 is about 5343.7685204357. The cubic root of 28555862 is about 305.6551785250.

The spelling of 28555862 in words is "twenty-eight million, five hundred fifty-five thousand, eight hundred sixty-two".