491098726 has 8 divisors (see below), whose sum is σ = 736798464. Its totient is φ = 245499240.

The previous prime is 491098721. The next prime is 491098753. The reversal of 491098726 is 627890194.

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 (491098721) 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, 11305 + ... + 33316.

It is an arithmetic number, because the mean of its divisors is an integer number (92099808).

Almost surely, 2^491098726 is an apocalyptic number.

491098726 is a deficient number, since it is larger than the sum of its proper divisors (245699738).

491098726 is a wasteful number, since it uses less digits than its factorization.

491098726 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50126.

The product of its (nonzero) digits is 217728, while the sum is 46.

The square root of 491098726 is about 22160.7474151934. The cubic root of 491098726 is about 788.9623325380.

The spelling of 491098726 in words is "four hundred ninety-one million, ninety-eight thousand, seven hundred twenty-six".