866746405 has 8 divisors (see below), whose sum is σ = 1188680832. Its totient is φ = 594340368.

The previous prime is 866746393. The next prime is 866746459. The reversal of 866746405 is 504647668.

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 866746405 - 2¹⁷ = 866615333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12382057 + ... + 12382126.

It is an arithmetic number, because the mean of its divisors is an integer number (148585104).

Almost surely, 2^866746405 is an apocalyptic number.

It is an amenable number.

866746405 is a deficient number, since it is larger than the sum of its proper divisors (321934427).

866746405 is a wasteful number, since it uses less digits than its factorization.

866746405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24764195.

The product of its (nonzero) digits is 967680, while the sum is 46.

The square root of 866746405 is about 29440.5571448640. The cubic root of 866746405 is about 953.4487411293.

The spelling of 866746405 in words is "eight hundred sixty-six million, seven hundred forty-six thousand, four hundred five".