673687743 has 4 divisors (see below), whose sum is σ = 898250328. Its totient is φ = 449125160.

The previous prime is 673687711. The next prime is 673687771. The reversal of 673687743 is 347786376.

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

It is a cyclic number.

It is not a de Polignac number, because 673687743 - 2⁵ = 673687711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673687793) 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, 112281288 + ... + 112281293.

It is an arithmetic number, because the mean of its divisors is an integer number (224562582).

Almost surely, 2^673687743 is an apocalyptic number.

673687743 is a deficient number, since it is larger than the sum of its proper divisors (224562585).

673687743 is a wasteful number, since it uses less digits than its factorization.

673687743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224562584.

The product of its digits is 3556224, while the sum is 51.

The square root of 673687743 is about 25955.4954296773. The cubic root of 673687743 is about 876.6364989514.

The spelling of 673687743 in words is "six hundred seventy-three million, six hundred eighty-seven thousand, seven hundred forty-three".