42271697 has 8 divisors (see below), whose sum is σ = 46634280. Its totient is φ = 38067840.

The previous prime is 42271681. The next prime is 42271699. The reversal of 42271697 is 79617224.

It can be written as a sum of positive squares in 4 ways, for example, as 913936 + 41357761 = 956^2 + 6431^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 42271697 - 2⁴ = 42271681 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42271697.

It is not an unprimeable number, because it can be changed into a prime (42271699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39122 + ... + 40187.

It is an arithmetic number, because the mean of its divisors is an integer number (5829285).

Almost surely, 2^42271697 is an apocalyptic number.

It is an amenable number.

42271697 is a deficient number, since it is larger than the sum of its proper divisors (4362583).

42271697 is a wasteful number, since it uses less digits than its factorization.

42271697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79363.

The product of its digits is 42336, while the sum is 38.

The square root of 42271697 is about 6501.6687857811. The cubic root of 42271697 is about 348.3505984641.

The spelling of 42271697 in words is "forty-two million, two hundred seventy-one thousand, six hundred ninety-seven".