866055394 has 8 divisors (see below), whose sum is σ = 1304806608. Its totient is φ = 431119860.

The previous prime is 866055383. The next prime is 866055403. The reversal of 866055394 is 493550668.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 953352 + ... + 954259.

It is an arithmetic number, because the mean of its divisors is an integer number (163100826).

Almost surely, 2^866055394 is an apocalyptic number.

866055394 is a deficient number, since it is larger than the sum of its proper divisors (438751214).

866055394 is a wasteful number, since it uses less digits than its factorization.

866055394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1907840.

The product of its (nonzero) digits is 777600, while the sum is 46.

The square root of 866055394 is about 29428.8191064473. The cubic root of 866055394 is about 953.1952957044.

The spelling of 866055394 in words is "eight hundred sixty-six million, fifty-five thousand, three hundred ninety-four".