491267966 has 8 divisors (see below), whose sum is σ = 842173680. Its totient is φ = 210543408.

The previous prime is 491267963. The next prime is 491267969. The reversal of 491267966 is 669762194.

It is an interprime number because it is at equal distance from previous prime (491267963) and next prime (491267969).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491267963) 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, 17545271 + ... + 17545298.

It is an arithmetic number, because the mean of its divisors is an integer number (105271710).

Almost surely, 2^491267966 is an apocalyptic number.

491267966 is a deficient number, since it is larger than the sum of its proper divisors (350905714).

491267966 is a wasteful number, since it uses less digits than its factorization.

491267966 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35090578.

The product of its digits is 979776, while the sum is 50.

The square root of 491267966 is about 22164.5655495433. The cubic root of 491267966 is about 789.0529515540.

The spelling of 491267966 in words is "four hundred ninety-one million, two hundred sixty-seven thousand, nine hundred sixty-six".