42707543 has 4 divisors (see below), whose sum is σ = 42738048. Its totient is φ = 42677040.

The previous prime is 42707531. The next prime is 42707551. The reversal of 42707543 is 34570724.

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

It is a cyclic number.

It is not a de Polignac number, because 42707543 - 2¹⁶ = 42642007 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 (42703543) 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, 13046 + ... + 15987.

It is an arithmetic number, because the mean of its divisors is an integer number (10684512).

Almost surely, 2^42707543 is an apocalyptic number.

42707543 is a deficient number, since it is larger than the sum of its proper divisors (30505).

42707543 is a wasteful number, since it uses less digits than its factorization.

42707543 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30504.

The product of its (nonzero) digits is 23520, while the sum is 32.

The square root of 42707543 is about 6535.1008408440. The cubic root of 42707543 is about 349.5437401722.

The spelling of 42707543 in words is "forty-two million, seven hundred seven thousand, five hundred forty-three".