491467953 has 4 divisors (see below), whose sum is σ = 655290608. Its totient is φ = 327645300.

The previous prime is 491467937. The next prime is 491467957. The reversal of 491467953 is 359764194.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 491467953 - 2⁴ = 491467937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491467957) 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, 81911323 + ... + 81911328.

It is an arithmetic number, because the mean of its divisors is an integer number (163822652).

Almost surely, 2^491467953 is an apocalyptic number.

It is an amenable number.

491467953 is a deficient number, since it is larger than the sum of its proper divisors (163822655).

491467953 is a wasteful number, since it uses less digits than its factorization.

491467953 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163822654.

The product of its digits is 816480, while the sum is 48.

The square root of 491467953 is about 22169.0765030932. The cubic root of 491467953 is about 789.1600071298.

The spelling of 491467953 in words is "four hundred ninety-one million, four hundred sixty-seven thousand, nine hundred fifty-three".