490715689 has 8 divisors (see below), whose sum is σ = 498782720. Its totient is φ = 482695200.

The previous prime is 490715669. The next prime is 490715707. The reversal of 490715689 is 986517094.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-490715689 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (490715609) 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, 9949 + ... + 32869.

It is an arithmetic number, because the mean of its divisors is an integer number (62347840).

Almost surely, 2^490715689 is an apocalyptic number.

It is an amenable number.

490715689 is a deficient number, since it is larger than the sum of its proper divisors (8067031).

490715689 is a wasteful number, since it uses less digits than its factorization.

490715689 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23271.

The product of its (nonzero) digits is 544320, while the sum is 49.

The square root of 490715689 is about 22152.1034892852. The cubic root of 490715689 is about 788.7571596937.

The spelling of 490715689 in words is "four hundred ninety million, seven hundred fifteen thousand, six hundred eighty-nine".