42320863 has 4 divisors (see below), whose sum is σ = 45576328. Its totient is φ = 39065400.

The previous prime is 42320857. The next prime is 42320867. The reversal of 42320863 is 36802324.

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 42320863 - 2¹³ = 42312671 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 (42320867) 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, 1627713 + ... + 1627738.

It is an arithmetic number, because the mean of its divisors is an integer number (11394082).

Almost surely, 2^42320863 is an apocalyptic number.

42320863 is a deficient number, since it is larger than the sum of its proper divisors (3255465).

42320863 is a wasteful number, since it uses less digits than its factorization.

42320863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3255464.

The product of its (nonzero) digits is 6912, while the sum is 28.

The square root of 42320863 is about 6505.4487162685. The cubic root of 42320863 is about 348.4856010853.

The spelling of 42320863 in words is "forty-two million, three hundred twenty thousand, eight hundred sixty-three".