27998026 has 8 divisors (see below), whose sum is σ = 47996640. Its totient is φ = 11999148.

The previous prime is 27998023. The next prime is 27998057. The reversal of 27998026 is 62089972.

It is a happy number.

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

It is not an unprimeable number, because it can be changed into a prime (27998023) 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, 999916 + ... + 999943.

It is an arithmetic number, because the mean of its divisors is an integer number (5999580).

Almost surely, 2^27998026 is an apocalyptic number.

27998026 is a deficient number, since it is larger than the sum of its proper divisors (19998614).

27998026 is a wasteful number, since it uses less digits than its factorization.

27998026 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1999868.

The product of its (nonzero) digits is 108864, while the sum is 43.

The square root of 27998026 is about 5291.3160933741. The cubic root of 27998026 is about 303.6517610358.

The spelling of 27998026 in words is "twenty-seven million, nine hundred ninety-eight thousand, twenty-six".