491367922 has 4 divisors (see below), whose sum is σ = 737051886. Its totient is φ = 245683960.

The previous prime is 491367907. The next prime is 491367971. The reversal of 491367922 is 229763194.

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

It can be written as a sum of positive squares in only one way, i.e., 480004281 + 11363641 = 21909^2 + 3371^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 122841979 + ... + 122841982.

Almost surely, 2^491367922 is an apocalyptic number.

491367922 is a deficient number, since it is larger than the sum of its proper divisors (245683964).

491367922 is a wasteful number, since it uses less digits than its factorization.

491367922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245683963.

The product of its digits is 163296, while the sum is 43.

The square root of 491367922 is about 22166.8202952070. The cubic root of 491367922 is about 789.1064628986.

The spelling of 491367922 in words is "four hundred ninety-one million, three hundred sixty-seven thousand, nine hundred twenty-two".