888394861 has 4 divisors (see below), whose sum is σ = 889408732. Its totient is φ = 887380992.

The previous prime is 888394841. The next prime is 888394867. The reversal of 888394861 is 168493888.

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 601769961 + 286624900 = 24531^2 + 16930^2 .

It is a cyclic number.

It is not a de Polignac number, because 888394861 - 2¹⁹ = 887870573 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 (888394867) 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, 505620 + ... + 507373.

It is an arithmetic number, because the mean of its divisors is an integer number (222352183).

Almost surely, 2^888394861 is an apocalyptic number.

It is an amenable number.

888394861 is a deficient number, since it is larger than the sum of its proper divisors (1013871).

888394861 is a wasteful number, since it uses less digits than its factorization.

888394861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1013870.

The product of its digits is 2654208, while the sum is 55.

The square root of 888394861 is about 29805.9534489337. The cubic root of 888394861 is about 961.3215526504.

The spelling of 888394861 in words is "eight hundred eighty-eight million, three hundred ninety-four thousand, eight hundred sixty-one".