42347117 has 8 divisors (see below), whose sum is σ = 44254080. Its totient is φ = 40445680.

The previous prime is 42347087. The next prime is 42347167. The reversal of 42347117 is 71174324.

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 42347117 - 2⁸ = 42346861 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 42347117.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42347167) 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, 26384 + ... + 27942.

It is an arithmetic number, because the mean of its divisors is an integer number (5531760).

Almost surely, 2^42347117 is an apocalyptic number.

It is an amenable number.

42347117 is a deficient number, since it is larger than the sum of its proper divisors (1906963).

42347117 is a wasteful number, since it uses less digits than its factorization.

42347117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2763.

The product of its digits is 4704, while the sum is 29.

The square root of 42347117 is about 6507.4662503927. The cubic root of 42347117 is about 348.5576478968.

The spelling of 42347117 in words is "forty-two million, three hundred forty-seven thousand, one hundred seventeen".