28043086 has 8 divisors (see below), whose sum is σ = 42130440. Its totient is φ = 13999608.

The previous prime is 28043053. The next prime is 28043117. The reversal of 28043086 is 68034082.

It is a happy number.

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 polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9321 + ... + 11956.

It is an arithmetic number, because the mean of its divisors is an integer number (5266305).

Almost surely, 2^28043086 is an apocalyptic number.

28043086 is a deficient number, since it is larger than the sum of its proper divisors (14087354).

28043086 is a wasteful number, since it uses less digits than its factorization.

28043086 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21938.

The product of its (nonzero) digits is 9216, while the sum is 31.

The square root of 28043086 is about 5295.5723014609. The cubic root of 28043086 is about 303.8145726888.

The spelling of 28043086 in words is "twenty-eight million, forty-three thousand, eighty-six".