489711031 has 4 divisors (see below), whose sum is σ = 489928752. Its totient is φ = 489493312.

The previous prime is 489711017. The next prime is 489711067. The reversal of 489711031 is 130117984.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-489711031 is a prime.

It is a super-2 number, since 2×489711031² = 479633787766165922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (489711631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 105451 + ... + 109996.

It is an arithmetic number, because the mean of its divisors is an integer number (122482188).

Almost surely, 2^489711031 is an apocalyptic number.

489711031 is a deficient number, since it is larger than the sum of its proper divisors (217721).

489711031 is a wasteful number, since it uses less digits than its factorization.

489711031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217720.

The product of its (nonzero) digits is 6048, while the sum is 34.

The square root of 489711031 is about 22129.4155141974. The cubic root of 489711031 is about 788.2185093005.

The spelling of 489711031 in words is "four hundred eighty-nine million, seven hundred eleven thousand, thirty-one".