342207427 has 2 divisors, whose sum is σ = 342207428. Its totient is φ = 342207426.

The previous prime is 342207407. The next prime is 342207431. The reversal of 342207427 is 724702243.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342207427 is a prime.

It is not a weakly prime, because it can be changed into another prime (342207407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171103713 + 171103714.

It is an arithmetic number, because the mean of its divisors is an integer number (171103714).

Almost surely, 2^342207427 is an apocalyptic number.

342207427 is a deficient number, since it is larger than the sum of its proper divisors (1).

342207427 is an equidigital number, since it uses as much as digits as its factorization.

342207427 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 31.

The square root of 342207427 is about 18498.8493425943. The cubic root of 342207427 is about 699.4604188753.

The spelling of 342207427 in words is "three hundred forty-two million, two hundred seven thousand, four hundred twenty-seven".