42812863 has 4 divisors (see below), whose sum is σ = 42826048. Its totient is φ = 42799680.

The previous prime is 42812857. The next prime is 42812873. The reversal of 42812863 is 36821824.

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 42812863 - 2⁵ = 42812831 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 (42812813) 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, 2095 + ... + 9487.

It is an arithmetic number, because the mean of its divisors is an integer number (10706512).

Almost surely, 2^42812863 is an apocalyptic number.

42812863 is a deficient number, since it is larger than the sum of its proper divisors (13185).

42812863 is an equidigital number, since it uses as much as digits as its factorization.

42812863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13184.

The product of its digits is 18432, while the sum is 34.

The square root of 42812863 is about 6543.1539031265. The cubic root of 42812863 is about 349.8308379817.

The spelling of 42812863 in words is "forty-two million, eight hundred twelve thousand, eight hundred sixty-three".