489892031 has 4 divisors (see below), whose sum is σ = 492354000. Its totient is φ = 487430064.

The previous prime is 489891971. The next prime is 489892057. The reversal of 489892031 is 130298984.

It is a happy number.

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-489892031 is a prime.

It is a super-2 number, since 2×489892031² = 479988404074609922, 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 (489892061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1230686 + ... + 1231083.

It is an arithmetic number, because the mean of its divisors is an integer number (123088500).

Almost surely, 2^489892031 is an apocalyptic number.

489892031 is a deficient number, since it is larger than the sum of its proper divisors (2461969).

489892031 is a wasteful number, since it uses less digits than its factorization.

489892031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2461968.

The product of its (nonzero) digits is 124416, while the sum is 44.

The square root of 489892031 is about 22133.5047157019. The cubic root of 489892031 is about 788.3156073630.

The spelling of 489892031 in words is "four hundred eighty-nine million, eight hundred ninety-two thousand, thirty-one".