42885847 has 4 divisors (see below), whose sum is σ = 43052976. Its totient is φ = 42718720.

The previous prime is 42885841. The next prime is 42885853. The reversal of 42885847 is 74858824.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (42885841) and next prime (42885853).

It is a cyclic number.

It is not a de Polignac number, because 42885847 - 2³ = 42885839 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 42885797 and 42885806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42885841) 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, 83179 + ... + 83692.

It is an arithmetic number, because the mean of its divisors is an integer number (10763244).

Almost surely, 2^42885847 is an apocalyptic number.

42885847 is a deficient number, since it is larger than the sum of its proper divisors (167129).

42885847 is a wasteful number, since it uses less digits than its factorization.

42885847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167128.

The product of its digits is 573440, while the sum is 46.

The square root of 42885847 is about 6548.7286552429. The cubic root of 42885847 is about 350.0295131575.

The spelling of 42885847 in words is "forty-two million, eight hundred eighty-five thousand, eight hundred forty-seven".