42847459 has 4 divisors (see below), whose sum is σ = 44710416. Its totient is φ = 40984504.

The previous prime is 42847447. The next prime is 42847477. The reversal of 42847459 is 95474824.

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 42847459 - 2¹³ = 42839267 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42847439) 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, 931444 + ... + 931489.

It is an arithmetic number, because the mean of its divisors is an integer number (11177604).

Almost surely, 2^42847459 is an apocalyptic number.

42847459 is a deficient number, since it is larger than the sum of its proper divisors (1862957).

42847459 is a wasteful number, since it uses less digits than its factorization.

42847459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1862956.

The product of its digits is 322560, while the sum is 43.

The square root of 42847459 is about 6545.7970484884. The cubic root of 42847459 is about 349.9250424513.

The spelling of 42847459 in words is "forty-two million, eight hundred forty-seven thousand, four hundred fifty-nine".