673542873 has 12 divisors (see below), whose sum is σ = 1030124628. Its totient is φ = 422615040.

The previous prime is 673542871. The next prime is 673542887. The reversal of 673542873 is 378245376.

It can be written as a sum of positive squares in 2 ways, for example, as 618367689 + 55175184 = 24867^2 + 7428^2 .

It is not a de Polignac number, because 673542873 - 2¹ = 673542871 is a prime.

It is not an unprimeable number, because it can be changed into a prime (673542871) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2200968 + ... + 2201273.

It is an arithmetic number, because the mean of its divisors is an integer number (85843719).

Almost surely, 2^673542873 is an apocalyptic number.

It is an amenable number.

673542873 is a deficient number, since it is larger than the sum of its proper divisors (356581755).

673542873 is a wasteful number, since it uses less digits than its factorization.

673542873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4402264 (or 4402261 counting only the distinct ones).

The product of its digits is 846720, while the sum is 45.

The square root of 673542873 is about 25952.7045411456. The cubic root of 673542873 is about 876.5736570610.

The spelling of 673542873 in words is "six hundred seventy-three million, five hundred forty-two thousand, eight hundred seventy-three".