27899842 has 8 divisors (see below), whose sum is σ = 42116796. Its totient is φ = 13860912.

The previous prime is 27899821. The next prime is 27899843. The reversal of 27899842 is 24899872.

It can be written as a sum of positive squares in 2 ways, for example, as 26020201 + 1879641 = 5101^2 + 1371^2 .

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 (27899843) 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, 44113 + ... + 44740.

Almost surely, 2^27899842 is an apocalyptic number.

27899842 is a deficient number, since it is larger than the sum of its proper divisors (14216954).

27899842 is a wasteful number, since it uses less digits than its factorization.

27899842 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89012.

The product of its digits is 580608, while the sum is 49.

The square root of 27899842 is about 5282.0301021482. The cubic root of 27899842 is about 303.2963947559.

The spelling of 27899842 in words is "twenty-seven million, eight hundred ninety-nine thousand, eight hundred forty-two".