427166279 has 2 divisors, whose sum is σ = 427166280. Its totient is φ = 427166278.

The previous prime is 427166239. The next prime is 427166309. The reversal of 427166279 is 972661724.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 427166279 - 2⁸ = 427166023 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (427166239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213583139 + 213583140.

It is an arithmetic number, because the mean of its divisors is an integer number (213583140).

Almost surely, 2^427166279 is an apocalyptic number.

427166279 is a deficient number, since it is larger than the sum of its proper divisors (1).

427166279 is an equidigital number, since it uses as much as digits as its factorization.

427166279 is an evil number, because the sum of its binary digits is even.

The product of its digits is 254016, while the sum is 44.

The square root of 427166279 is about 20668.0013305593. The cubic root of 427166279 is about 753.1225542387.

The spelling of 427166279 in words is "four hundred twenty-seven million, one hundred sixty-six thousand, two hundred seventy-nine".