673733737 has 4 divisors (see below), whose sum is σ = 674646160. Its totient is φ = 672821316.

The previous prime is 673733729. The next prime is 673733759. The reversal of 673733737 is 737337376.

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 a cyclic number.

It is not a de Polignac number, because 673733737 - 2³ = 673733729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (673733237) 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, 455103 + ... + 456580.

It is an arithmetic number, because the mean of its divisors is an integer number (168661540).

Almost surely, 2^673733737 is an apocalyptic number.

It is an amenable number.

673733737 is a deficient number, since it is larger than the sum of its proper divisors (912423).

673733737 is an equidigital number, since it uses as much as digits as its factorization.

673733737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 912422.

The product of its digits is 1166886, while the sum is 46.

The square root of 673733737 is about 25956.3814311625. The cubic root of 673733737 is about 876.6564484023.

The spelling of 673733737 in words is "six hundred seventy-three million, seven hundred thirty-three thousand, seven hundred thirty-seven".