491459765 has 8 divisors (see below), whose sum is σ = 591161760. Its totient is φ = 392227792.

The previous prime is 491459747. The next prime is 491459797. The reversal of 491459765 is 567954194.

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 491459765 - 2⁶ = 491459701 is a prime.

It is a super-2 number, since 2×491459765² = 483065401227710450, 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, 115199 + ... + 119388.

It is an arithmetic number, because the mean of its divisors is an integer number (73895220).

Almost surely, 2^491459765 is an apocalyptic number.

It is an amenable number.

491459765 is a deficient number, since it is larger than the sum of its proper divisors (99701995).

491459765 is a wasteful number, since it uses less digits than its factorization.

491459765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235011.

The product of its digits is 1360800, while the sum is 50.

The square root of 491459765 is about 22168.8918306712. The cubic root of 491459765 is about 789.1556245598.

The spelling of 491459765 in words is "four hundred ninety-one million, four hundred fifty-nine thousand, seven hundred sixty-five".