42318897 has 4 divisors (see below), whose sum is σ = 56425200. Its totient is φ = 28212596.

The previous prime is 42318893. The next prime is 42318901. The reversal of 42318897 is 79881324.

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 an interprime number because it is at equal distance from previous prime (42318893) and next prime (42318901).

It is a cyclic number.

It is not a de Polignac number, because 42318897 - 2² = 42318893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (42318893) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053147 + ... + 7053152.

It is an arithmetic number, because the mean of its divisors is an integer number (14106300).

Almost surely, 2^42318897 is an apocalyptic number.

It is an amenable number.

42318897 is a deficient number, since it is larger than the sum of its proper divisors (14106303).

42318897 is a wasteful number, since it uses less digits than its factorization.

42318897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14106302.

The product of its digits is 96768, while the sum is 42.

The square root of 42318897 is about 6505.2976104095. The cubic root of 42318897 is about 348.4802047453.

The spelling of 42318897 in words is "forty-two million, three hundred eighteen thousand, eight hundred ninety-seven".