863890093 has 8 divisors (see below), whose sum is σ = 943001280. Its totient is φ = 784874880.

The previous prime is 863890031. The next prime is 863890129. The reversal of 863890093 is 390098368.

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

It is a cyclic number.

It is not a de Polignac number, because 863890093 - 2⁹ = 863889581 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 (863896093) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4473 + ... + 41806.

It is an arithmetic number, because the mean of its divisors is an integer number (117875160).

Almost surely, 2^863890093 is an apocalyptic number.

It is an amenable number.

863890093 is a deficient number, since it is larger than the sum of its proper divisors (79111187).

863890093 is a wasteful number, since it uses less digits than its factorization.

863890093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47987.

The product of its (nonzero) digits is 279936, while the sum is 46.

The square root of 863890093 is about 29392.0072979033. The cubic root of 863890093 is about 952.4002437074.

The spelling of 863890093 in words is "eight hundred sixty-three million, eight hundred ninety thousand, ninety-three".