885334661 has 4 divisors (see below), whose sum is σ = 885513324. Its totient is φ = 885156000.

The previous prime is 885334651. The next prime is 885334691. The reversal of 885334661 is 166433588.

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 33570436 + 851764225 = 5794^2 + 29185^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-885334661 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 (885334601) 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, 81680 + ... + 91881.

It is an arithmetic number, because the mean of its divisors is an integer number (221378331).

Almost surely, 2^885334661 is an apocalyptic number.

It is an amenable number.

885334661 is a deficient number, since it is larger than the sum of its proper divisors (178663).

885334661 is a wasteful number, since it uses less digits than its factorization.

885334661 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178662.

The product of its digits is 414720, while the sum is 44.

The square root of 885334661 is about 29754.5737828657. The cubic root of 885334661 is about 960.2164807660.

The spelling of 885334661 in words is "eight hundred eighty-five million, three hundred thirty-four thousand, six hundred sixty-one".