673400673 has 12 divisors (see below), whose sum is σ = 1061116368. Its totient is φ = 408121560.

The previous prime is 673400671. The next prime is 673400681. The reversal of 673400673 is 376004376.

It is not a de Polignac number, because 673400673 - 2¹ = 673400671 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (673400671) 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, 3400915 + ... + 3401112.

It is an arithmetic number, because the mean of its divisors is an integer number (88426364).

Almost surely, 2^673400673 is an apocalyptic number.

It is an amenable number.

673400673 is a deficient number, since it is larger than the sum of its proper divisors (387715695).

673400673 is a wasteful number, since it uses less digits than its factorization.

673400673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6802044 (or 6802041 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 36.

The square root of 673400673 is about 25949.9647976640. The cubic root of 673400673 is about 876.5119646026.

The spelling of 673400673 in words is "six hundred seventy-three million, four hundred thousand, six hundred seventy-three".