491046463 has 4 divisors (see below), whose sum is σ = 503023248. Its totient is φ = 479069680.

The previous prime is 491046461. The next prime is 491046467. The reversal of 491046463 is 364640194.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 491046463 - 2¹ = 491046461 is a prime.

It is a super-2 number, since 2×491046463² = 482253257649620738, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491046461) 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, 5988331 + ... + 5988412.

It is an arithmetic number, because the mean of its divisors is an integer number (125755812).

Almost surely, 2^491046463 is an apocalyptic number.

491046463 is a deficient number, since it is larger than the sum of its proper divisors (11976785).

491046463 is a wasteful number, since it uses less digits than its factorization.

491046463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11976784.

The product of its (nonzero) digits is 62208, while the sum is 37.

The square root of 491046463 is about 22159.5682042769. The cubic root of 491046463 is about 788.9343442748.

The spelling of 491046463 in words is "four hundred ninety-one million, forty-six thousand, four hundred sixty-three".