491948285 has 8 divisors (see below), whose sum is σ = 621408480. Its totient is φ = 372844944.

The previous prime is 491948273. The next prime is 491948293. The reversal of 491948285 is 582849194.

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 491948285 - 2⁸ = 491948029 is a prime.

It is a super-2 number, since 2×491948285² = 484026230228882450, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2589107 + ... + 2589296.

It is an arithmetic number, because the mean of its divisors is an integer number (77676060).

Almost surely, 2^491948285 is an apocalyptic number.

It is an amenable number.

491948285 is a deficient number, since it is larger than the sum of its proper divisors (129460195).

491948285 is a wasteful number, since it uses less digits than its factorization.

491948285 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5178427.

The product of its digits is 829440, while the sum is 50.

The square root of 491948285 is about 22179.9072360549. The cubic root of 491948285 is about 789.4170163469.

Subtracting 491948285 from its reverse (582849194), we obtain a palindrome (90900909).

The spelling of 491948285 in words is "four hundred ninety-one million, nine hundred forty-eight thousand, two hundred eighty-five".