28705862 has 4 divisors (see below), whose sum is σ = 43058796. Its totient is φ = 14352930.

The previous prime is 28705847. The next prime is 28705891. The reversal of 28705862 is 26850782.

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, 7176464 + ... + 7176467.

It is an arithmetic number, because the mean of its divisors is an integer number (10764699).

Almost surely, 2^28705862 is an apocalyptic number.

28705862 is a deficient number, since it is larger than the sum of its proper divisors (14352934).

28705862 is a wasteful number, since it uses less digits than its factorization.

28705862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14352933.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 28705862 is about 5357.7851767311. The cubic root of 28705862 is about 306.1894323093.

The spelling of 28705862 in words is "twenty-eight million, seven hundred five thousand, eight hundred sixty-two".