497489881 has 8 divisors (see below), whose sum is σ = 572711040. Its totient is φ = 423306528.

The previous prime is 497489873. The next prime is 497489893. The reversal of 497489881 is 188984794.

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 497489881 - 2³ = 497489873 is a prime.

It is a super-2 number, since 2×497489881² = 494992363394788322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (497489801) 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, 258421 + ... + 260338.

It is an arithmetic number, because the mean of its divisors is an integer number (71588880).

Almost surely, 2^497489881 is an apocalyptic number.

It is an amenable number.

497489881 is a deficient number, since it is larger than the sum of its proper divisors (75221159).

497489881 is a wasteful number, since it uses less digits than its factorization.

497489881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 518903.

The product of its digits is 4644864, while the sum is 58.

The square root of 497489881 is about 22304.4811865239. The cubic root of 497489881 is about 792.3701086432.

The spelling of 497489881 in words is "four hundred ninety-seven million, four hundred eighty-nine thousand, eight hundred eighty-one".