491854937 has 8 divisors (see below), whose sum is σ = 562948416. Its totient is φ = 420968592.

The previous prime is 491854921. The next prime is 491854963. The reversal of 491854937 is 739458194.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 491854937 - 2⁴ = 491854921 is a prime.

It is a super-3 number, since 3×491854937³ (a number of 27 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (491854907) 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, 46658 + ... + 56219.

It is an arithmetic number, because the mean of its divisors is an integer number (70368552).

Almost surely, 2^491854937 is an apocalyptic number.

It is an amenable number.

491854937 is a deficient number, since it is larger than the sum of its proper divisors (71093479).

491854937 is a wasteful number, since it uses less digits than its factorization.

491854937 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103567.

The product of its digits is 1088640, while the sum is 50.

The square root of 491854937 is about 22177.8027991954. The cubic root of 491854937 is about 789.3670821273.

The spelling of 491854937 in words is "four hundred ninety-one million, eight hundred fifty-four thousand, nine hundred thirty-seven".