939867427 has 2 divisors, whose sum is σ = 939867428. Its totient is φ = 939867426.

The previous prime is 939867361. The next prime is 939867431. The reversal of 939867427 is 724768939.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-939867427 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (939867127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469933713 + 469933714.

It is an arithmetic number, because the mean of its divisors is an integer number (469933714).

Almost surely, 2^939867427 is an apocalyptic number.

939867427 is a deficient number, since it is larger than the sum of its proper divisors (1).

939867427 is an equidigital number, since it uses as much as digits as its factorization.

939867427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4572288, while the sum is 55.

The square root of 939867427 is about 30657.2573300352. The cubic root of 939867427 is about 979.5400545401.

The spelling of 939867427 in words is "nine hundred thirty-nine million, eight hundred sixty-seven thousand, four hundred twenty-seven".