42371597 has 4 divisors (see below), whose sum is σ = 42409500. Its totient is φ = 42333696.

The previous prime is 42371591. The next prime is 42371611. The reversal of 42371597 is 79517324.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 18498601 + 23872996 = 4301^2 + 4886^2 .

It is a cyclic number.

It is not a de Polignac number, because 42371597 - 2⁶ = 42371533 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 42371597.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42371591) 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, 17222 + ... + 19527.

It is an arithmetic number, because the mean of its divisors is an integer number (10602375).

Almost surely, 2^42371597 is an apocalyptic number.

It is an amenable number.

42371597 is a deficient number, since it is larger than the sum of its proper divisors (37903).

42371597 is a wasteful number, since it uses less digits than its factorization.

42371597 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37902.

The product of its digits is 52920, while the sum is 38.

The square root of 42371597 is about 6509.3468950425. The cubic root of 42371597 is about 348.6247996351.

The spelling of 42371597 in words is "forty-two million, three hundred seventy-one thousand, five hundred ninety-seven".