427693171 has 2 divisors, whose sum is σ = 427693172. Its totient is φ = 427693170.

The previous prime is 427693153. The next prime is 427693177. The reversal of 427693171 is 171396724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427693171 - 2⁵ = 427693139 is a prime.

It is not a weakly prime, because it can be changed into another prime (427693177) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213846585 + 213846586.

It is an arithmetic number, because the mean of its divisors is an integer number (213846586).

Almost surely, 2^427693171 is an apocalyptic number.

427693171 is a deficient number, since it is larger than the sum of its proper divisors (1).

427693171 is an equidigital number, since it uses as much as digits as its factorization.

427693171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 63504, while the sum is 40.

The square root of 427693171 is about 20680.7439663084. The cubic root of 427693171 is about 753.4320755568.

The spelling of 427693171 in words is "four hundred twenty-seven million, six hundred ninety-three thousand, one hundred seventy-one".