866604461 has 8 divisors (see below), whose sum is σ = 918013824. Its totient is φ = 815243200.

The previous prime is 866604457. The next prime is 866604469. The reversal of 866604461 is 164406668.

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 866604461 - 2² = 866604457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (866604469) 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, 29126 + ... + 50808.

It is an arithmetic number, because the mean of its divisors is an integer number (114751728).

Almost surely, 2^866604461 is an apocalyptic number.

It is an amenable number.

866604461 is a deficient number, since it is larger than the sum of its proper divisors (51409363).

866604461 is a wasteful number, since it uses less digits than its factorization.

866604461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24051.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 866604461 is about 29438.1463580844. The cubic root of 866604461 is about 953.3966906426.

The spelling of 866604461 in words is "eight hundred sixty-six million, six hundred four thousand, four hundred sixty-one".