28249862 has 8 divisors (see below), whose sum is σ = 42620256. Its totient is φ = 14043112.

The previous prime is 28249843. The next prime is 28249877. The reversal of 28249862 is 26894282.

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

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 40478 + ... + 41169.

It is an arithmetic number, because the mean of its divisors is an integer number (5327532).

Almost surely, 2^28249862 is an apocalyptic number.

28249862 is a deficient number, since it is larger than the sum of its proper divisors (14370394).

28249862 is a wasteful number, since it uses less digits than its factorization.

28249862 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81822.

The product of its digits is 110592, while the sum is 41.

The square root of 28249862 is about 5315.0599244035. The cubic root of 28249862 is about 304.5594715245.

The spelling of 28249862 in words is "twenty-eight million, two hundred forty-nine thousand, eight hundred sixty-two".