42604897 has 4 divisors (see below), whose sum is σ = 44847280. Its totient is φ = 40362516.

The previous prime is 42604879. The next prime is 42604927. The reversal of 42604897 is 79840624.

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 a cyclic number.

It is not a de Polignac number, because 42604897 - 2¹¹ = 42602849 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42604847) 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, 1121163 + ... + 1121200.

It is an arithmetic number, because the mean of its divisors is an integer number (11211820).

Almost surely, 2^42604897 is an apocalyptic number.

It is an amenable number.

42604897 is a deficient number, since it is larger than the sum of its proper divisors (2242383).

42604897 is a wasteful number, since it uses less digits than its factorization.

42604897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2242382.

The product of its (nonzero) digits is 96768, while the sum is 40.

The square root of 42604897 is about 6527.2426797232. The cubic root of 42604897 is about 349.2634770344.

The spelling of 42604897 in words is "forty-two million, six hundred four thousand, eight hundred ninety-seven".