42861847 has 8 divisors (see below), whose sum is σ = 49025952. Its totient is φ = 36708000.

The previous prime is 42861839. The next prime is 42861859. The reversal of 42861847 is 74816824.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42861847 - 2³ = 42861839 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 (42861817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11697 + ... + 14917.

It is an arithmetic number, because the mean of its divisors is an integer number (6128244).

Almost surely, 2^42861847 is an apocalyptic number.

42861847 is a deficient number, since it is larger than the sum of its proper divisors (6164105).

42861847 is a wasteful number, since it uses less digits than its factorization.

42861847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5129.

The product of its digits is 86016, while the sum is 40.

The square root of 42861847 is about 6546.8959820666. The cubic root of 42861847 is about 349.9642058633.

The spelling of 42861847 in words is "forty-two million, eight hundred sixty-one thousand, eight hundred forty-seven".