490871247 has 8 divisors (see below), whose sum is σ = 655011840. Its totient is φ = 326989080.

The previous prime is 490871237. The next prime is 490871261. The reversal of 490871247 is 742178094.

It is a happy number.

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

It is not a de Polignac number, because 490871247 - 2⁴ = 490871231 is a prime.

It is a super-2 number, since 2×490871247² = 481909162262670018, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 490871199 and 490871208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (490871237) 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, 60129 + ... + 67802.

It is an arithmetic number, because the mean of its divisors is an integer number (81876480).

Almost surely, 2^490871247 is an apocalyptic number.

490871247 is a deficient number, since it is larger than the sum of its proper divisors (164140593).

490871247 is a wasteful number, since it uses less digits than its factorization.

490871247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129213.

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 490871247 is about 22155.6143449014. The cubic root of 490871247 is about 788.8404968318.

The spelling of 490871247 in words is "four hundred ninety million, eight hundred seventy-one thousand, two hundred forty-seven".