427395971 has 2 divisors, whose sum is σ = 427395972. Its totient is φ = 427395970.

The previous prime is 427395961. The next prime is 427396001. The reversal of 427395971 is 179593724.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 427395971 - 2¹⁸ = 427133827 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (427395901) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213697985 + 213697986.

It is an arithmetic number, because the mean of its divisors is an integer number (213697986).

Almost surely, 2^427395971 is an apocalyptic number.

427395971 is a deficient number, since it is larger than the sum of its proper divisors (1).

427395971 is an equidigital number, since it uses as much as digits as its factorization.

427395971 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The square root of 427395971 is about 20673.5572894459. The cubic root of 427395971 is about 753.2575174743.

The spelling of 427395971 in words is "four hundred twenty-seven million, three hundred ninety-five thousand, nine hundred seventy-one".