427444017 has 64 divisors (see below), whose sum is σ = 786100224. Its totient is φ = 199376640.

The previous prime is 427444013. The next prime is 427444051. The reversal of 427444017 is 710444724.

It is a happy number.

It is not a de Polignac number, because 427444017 - 2² = 427444013 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (427444013) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 109188 + ... + 113034.

It is an arithmetic number, because the mean of its divisors is an integer number (12282816).

Almost surely, 2^427444017 is an apocalyptic number.

It is an amenable number.

427444017 is a deficient number, since it is larger than the sum of its proper divisors (358656207).

427444017 is a wasteful number, since it uses less digits than its factorization.

427444017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3918.

The product of its (nonzero) digits is 25088, while the sum is 33.

The square root of 427444017 is about 20674.7192725802. The cubic root of 427444017 is about 753.2857423969.

It can be divided in two parts, 427 and 444017, that added together give a palindrome (444444).

The spelling of 427444017 in words is "four hundred twenty-seven million, four hundred forty-four thousand, seventeen".