42637793 has 8 divisors (see below), whose sum is σ = 46604160. Its totient is φ = 38686480.

The previous prime is 42637781. The next prime is 42637807. The reversal of 42637793 is 39773624.

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 42637793 - 2¹⁴ = 42621409 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 42637793.

It is not an unprimeable number, because it can be changed into a prime (42637093) 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, 2648 + ... + 9606.

It is an arithmetic number, because the mean of its divisors is an integer number (5825520).

Almost surely, 2^42637793 is an apocalyptic number.

It is an amenable number.

42637793 is a deficient number, since it is larger than the sum of its proper divisors (3966367).

42637793 is a wasteful number, since it uses less digits than its factorization.

42637793 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7527.

The product of its digits is 190512, while the sum is 41.

The square root of 42637793 is about 6529.7620936754. The cubic root of 42637793 is about 349.3533447599.

The spelling of 42637793 in words is "forty-two million, six hundred thirty-seven thousand, seven hundred ninety-three".