396142427 has 2 divisors, whose sum is σ = 396142428. Its totient is φ = 396142426.

The previous prime is 396142423. The next prime is 396142433. The reversal of 396142427 is 724241693.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 396142427 - 2² = 396142423 is a prime.

It is not a weakly prime, because it can be changed into another prime (396142421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198071213 + 198071214.

It is an arithmetic number, because the mean of its divisors is an integer number (198071214).

Almost surely, 2^396142427 is an apocalyptic number.

396142427 is a deficient number, since it is larger than the sum of its proper divisors (1).

396142427 is an equidigital number, since it uses as much as digits as its factorization.

396142427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72576, while the sum is 38.

The square root of 396142427 is about 19903.3270334384. The cubic root of 396142427 is about 734.4300744862.

The spelling of 396142427 in words is "three hundred ninety-six million, one hundred forty-two thousand, four hundred twenty-seven".