427165801 has 2 divisors, whose sum is σ = 427165802. Its totient is φ = 427165800.

The previous prime is 427165763. The next prime is 427165807. The reversal of 427165801 is 108561724.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 235315600 + 191850201 = 15340^2 + 13851^2 .

It is a cyclic number.

It is not a de Polignac number, because 427165801 - 2⁹ = 427165289 is a prime.

It is not a weakly prime, because it can be changed into another prime (427165807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 213582900 + 213582901.

It is an arithmetic number, because the mean of its divisors is an integer number (213582901).

Almost surely, 2^427165801 is an apocalyptic number.

It is an amenable number.

427165801 is a deficient number, since it is larger than the sum of its proper divisors (1).

427165801 is an equidigital number, since it uses as much as digits as its factorization.

427165801 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 427165801 is about 20667.9897667867. The cubic root of 427165801 is about 753.1222733233.

The spelling of 427165801 in words is "four hundred twenty-seven million, one hundred sixty-five thousand, eight hundred one".