427042117 has 4 divisors (see below), whose sum is σ = 427095360. Its totient is φ = 426988876.

The previous prime is 427042111. The next prime is 427042171. The reversal of 427042117 is 711240724.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-427042117 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (427042111) 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 in 3 ways as a sum of consecutive naturals, for example, 11863 + ... + 31540.

It is an arithmetic number, because the mean of its divisors is an integer number (106773840).

Almost surely, 2^427042117 is an apocalyptic number.

It is an amenable number.

427042117 is a deficient number, since it is larger than the sum of its proper divisors (53243).

427042117 is an equidigital number, since it uses as much as digits as its factorization.

427042117 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53242.

The product of its (nonzero) digits is 3136, while the sum is 28.

The square root of 427042117 is about 20664.9973868859. The cubic root of 427042117 is about 753.0495785471.

The spelling of 427042117 in words is "four hundred twenty-seven million, forty-two thousand, one hundred seventeen".