28646862 has 8 divisors (see below), whose sum is σ = 57293736. Its totient is φ = 9548952.

The previous prime is 28646861. The next prime is 28646873. The reversal of 28646862 is 26864682.

It is a sphenic number, since it is the product of 3 distinct primes.

28646862 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (28646861) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2387233 + ... + 2387244.

It is an arithmetic number, because the mean of its divisors is an integer number (7161717).

Almost surely, 2^28646862 is an apocalyptic number.

28646862 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

28646862 is a wasteful number, since it uses less digits than its factorization.

28646862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774482.

The product of its digits is 221184, while the sum is 42.

The square root of 28646862 is about 5352.2763381574. The cubic root of 28646862 is about 305.9795150540.

The spelling of 28646862 in words is "twenty-eight million, six hundred forty-six thousand, eight hundred sixty-two".