42854447 has 4 divisors (see below), whose sum is σ = 42868560. Its totient is φ = 42840336.

The previous prime is 42854429. The next prime is 42854453. The reversal of 42854447 is 74445824.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 42854447 - 2⁸ = 42854191 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 42854447.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42851447) 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, 422 + ... + 9267.

It is an arithmetic number, because the mean of its divisors is an integer number (10717140).

Almost surely, 2^42854447 is an apocalyptic number.

42854447 is a deficient number, since it is larger than the sum of its proper divisors (14113).

42854447 is an equidigital number, since it uses as much as digits as its factorization.

42854447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14112.

The product of its digits is 143360, while the sum is 38.

The square root of 42854447 is about 6546.3308043514. The cubic root of 42854447 is about 349.9440645305.

The spelling of 42854447 in words is "forty-two million, eight hundred fifty-four thousand, four hundred forty-seven".