42617663 has 4 divisors (see below), whose sum is σ = 46492008. Its totient is φ = 38743320.

The previous prime is 42617651. The next prime is 42617669. The reversal of 42617663 is 36671624.

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

It is not a de Polignac number, because 42617663 - 2¹² = 42613567 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42617669) 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, 1937156 + ... + 1937177.

It is an arithmetic number, because the mean of its divisors is an integer number (11623002).

Almost surely, 2^42617663 is an apocalyptic number.

42617663 is a deficient number, since it is larger than the sum of its proper divisors (3874345).

42617663 is a wasteful number, since it uses less digits than its factorization.

42617663 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3874344.

The product of its digits is 36288, while the sum is 35.

The square root of 42617663 is about 6528.2205079179. The cubic root of 42617663 is about 349.2983576280.

The spelling of 42617663 in words is "forty-two million, six hundred seventeen thousand, six hundred sixty-three".