427445717 has 8 divisors (see below), whose sum is σ = 450196800. Its totient is φ = 404720064.

The previous prime is 427445713. The next prime is 427445749. The reversal of 427445717 is 717544724.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 427445717 - 2² = 427445713 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 (427445713) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35168 + ... + 45734.

It is an arithmetic number, because the mean of its divisors is an integer number (56274600).

Almost surely, 2^427445717 is an apocalyptic number.

It is an amenable number.

427445717 is a deficient number, since it is larger than the sum of its proper divisors (22751083).

427445717 is a wasteful number, since it uses less digits than its factorization.

427445717 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12715.

The product of its digits is 219520, while the sum is 41.

The square root of 427445717 is about 20674.7603855522. The cubic root of 427445717 is about 753.2867410338.

The spelling of 427445717 in words is "four hundred twenty-seven million, four hundred forty-five thousand, seven hundred seventeen".