42860093 has 4 divisors (see below), whose sum is σ = 43668828. Its totient is φ = 42051360.

The previous prime is 42860071. The next prime is 42860113. The reversal of 42860093 is 39006824.

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

It can be written as a sum of positive squares in 2 ways, for example, as 34316164 + 8543929 = 5858^2 + 2923^2 .

It is a cyclic number.

It is not a de Polignac number, because 42860093 - 2⁸ = 42859837 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 (42860053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 404288 + ... + 404393.

It is an arithmetic number, because the mean of its divisors is an integer number (10917207).

Almost surely, 2^42860093 is an apocalyptic number.

It is an amenable number.

42860093 is a deficient number, since it is larger than the sum of its proper divisors (808735).

42860093 is an equidigital number, since it uses as much as digits as its factorization.

42860093 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 808734.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 42860093 is about 6546.7620240849. The cubic root of 42860093 is about 349.9594320327.

The spelling of 42860093 in words is "forty-two million, eight hundred sixty thousand, ninety-three".