28686846 has 16 divisors (see below), whose sum is σ = 60393600. Its totient is φ = 9058968.

The previous prime is 28686817. The next prime is 28686857. The reversal of 28686846 is 64868682.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 28686795 and 28686804.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 125706 + ... + 125933.

It is an arithmetic number, because the mean of its divisors is an integer number (3774600).

Almost surely, 2^28686846 is an apocalyptic number.

28686846 is an abundant number, since it is smaller than the sum of its proper divisors (31706754).

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

28686846 is a wasteful number, since it uses less digits than its factorization.

28686846 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251663.

The product of its digits is 884736, while the sum is 48.

The square root of 28686846 is about 5356.0102688475. The cubic root of 28686846 is about 306.1218063495.

The spelling of 28686846 in words is "twenty-eight million, six hundred eighty-six thousand, eight hundred forty-six".