27951841 has 2 divisors, whose sum is σ = 27951842. Its totient is φ = 27951840.

The previous prime is 27951823. The next prime is 27951857. The reversal of 27951841 is 14815972.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 27878400 + 73441 = 5280^2 + 271^2 .

It is a cyclic number.

It is not a de Polignac number, because 27951841 - 2⁷ = 27951713 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 27951841.

It is not a weakly prime, because it can be changed into another prime (27951871) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13975920 + 13975921.

It is an arithmetic number, because the mean of its divisors is an integer number (13975921).

Almost surely, 2^27951841 is an apocalyptic number.

It is an amenable number.

27951841 is a deficient number, since it is larger than the sum of its proper divisors (1).

27951841 is an equidigital number, since it uses as much as digits as its factorization.

27951841 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20160, while the sum is 37.

The square root of 27951841 is about 5286.9500659643. The cubic root of 27951841 is about 303.4847031274.

The spelling of 27951841 in words is "twenty-seven million, nine hundred fifty-one thousand, eight hundred forty-one".