42430847 has 4 divisors (see below), whose sum is σ = 43799616. Its totient is φ = 41062080.

The previous prime is 42430811. The next prime is 42430867. The reversal of 42430847 is 74803424.

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 42430847 - 2¹⁰ = 42429823 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 (42430867) 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, 684338 + ... + 684399.

It is an arithmetic number, because the mean of its divisors is an integer number (10949904).

Almost surely, 2^42430847 is an apocalyptic number.

42430847 is a deficient number, since it is larger than the sum of its proper divisors (1368769).

42430847 is a wasteful number, since it uses less digits than its factorization.

42430847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1368768.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 42430847 is about 6513.8964529688. The cubic root of 42430847 is about 348.7872228954.

The spelling of 42430847 in words is "forty-two million, four hundred thirty thousand, eight hundred forty-seven".