673461889 has 4 divisors (see below), whose sum is σ = 673541460. Its totient is φ = 673382320.

The previous prime is 673461863. The next prime is 673461907. The reversal of 673461889 is 988164376.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 412090000 + 261371889 = 20300^2 + 16167^2 .

It is a cyclic number.

It is not a de Polignac number, because 673461889 - 2⁵ = 673461857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673461389) 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, 25342 + ... + 44599.

It is an arithmetic number, because the mean of its divisors is an integer number (168385365).

Almost surely, 2^673461889 is an apocalyptic number.

It is an amenable number.

673461889 is a deficient number, since it is larger than the sum of its proper divisors (79571).

673461889 is an equidigital number, since it uses as much as digits as its factorization.

673461889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79570.

The product of its digits is 1741824, while the sum is 52.

The square root of 673461889 is about 25951.1442714960. The cubic root of 673461889 is about 876.5385237933.

The spelling of 673461889 in words is "six hundred seventy-three million, four hundred sixty-one thousand, eight hundred eighty-nine".