671058489 has 4 divisors (see below), whose sum is σ = 894744656. Its totient is φ = 447372324.

The previous prime is 671058467. The next prime is 671058503. The reversal of 671058489 is 984850176.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 671058489 - 2⁷ = 671058361 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (671058889) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 111843079 + ... + 111843084.

It is an arithmetic number, because the mean of its divisors is an integer number (223686164).

Almost surely, 2^671058489 is an apocalyptic number.

It is an amenable number.

671058489 is a deficient number, since it is larger than the sum of its proper divisors (223686167).

671058489 is a wasteful number, since it uses less digits than its factorization.

671058489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223686166.

The product of its (nonzero) digits is 483840, while the sum is 48.

The square root of 671058489 is about 25904.7966407768. The cubic root of 671058489 is about 875.4945727557.

The spelling of 671058489 in words is "six hundred seventy-one million, fifty-eight thousand, four hundred eighty-nine".