491723092 has 24 divisors (see below), whose sum is σ = 983991680. Its totient is φ = 210621600.

The previous prime is 491723053. The next prime is 491723093. The reversal of 491723092 is 290327194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (491723093) 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, 63217 + ... + 70567.

Almost surely, 2^491723092 is an apocalyptic number.

It is an amenable number.

491723092 is an abundant number, since it is smaller than the sum of its proper divisors (492268588).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

491723092 is a wasteful number, since it uses less digits than its factorization.

491723092 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9751 (or 9749 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 37.

The square root of 491723092 is about 22174.8301459109. The cubic root of 491723092 is about 789.2965441186.

The spelling of 491723092 in words is "four hundred ninety-one million, seven hundred twenty-three thousand, ninety-two".