27913829 has 2 divisors, whose sum is σ = 27913830. Its totient is φ = 27913828.

The previous prime is 27913777. The next prime is 27913843. The reversal of 27913829 is 92831972.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 19492225 + 8421604 = 4415^2 + 2902^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-27913829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (27913859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13956914 + 13956915.

It is an arithmetic number, because the mean of its divisors is an integer number (13956915).

Almost surely, 2^27913829 is an apocalyptic number.

It is an amenable number.

27913829 is a deficient number, since it is larger than the sum of its proper divisors (1).

27913829 is an equidigital number, since it uses as much as digits as its factorization.

27913829 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 41.

The square root of 27913829 is about 5283.3539536927. The cubic root of 27913829 is about 303.3470700484.

The spelling of 27913829 in words is "twenty-seven million, nine hundred thirteen thousand, eight hundred twenty-nine".