27419813 has 2 divisors, whose sum is σ = 27419814. Its totient is φ = 27419812.

The previous prime is 27419807. The next prime is 27419851. The reversal of 27419813 is 31891472.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15737089 + 11682724 = 3967^2 + 3418^2 .

It is a cyclic number.

It is not a de Polignac number, because 27419813 - 2¹⁰ = 27418789 is a prime.

It is a super-2 number, since 2×27419813² = 1503692289909938, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27419803) 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, 13709906 + 13709907.

It is an arithmetic number, because the mean of its divisors is an integer number (13709907).

Almost surely, 2^27419813 is an apocalyptic number.

It is an amenable number.

27419813 is a deficient number, since it is larger than the sum of its proper divisors (1).

27419813 is an equidigital number, since it uses as much as digits as its factorization.

27419813 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 35.

The square root of 27419813 is about 5236.3931288627. The cubic root of 27419813 is about 301.5468731985.

The spelling of 27419813 in words is "twenty-seven million, four hundred nineteen thousand, eight hundred thirteen".