673723007 has 2 divisors, whose sum is σ = 673723008. Its totient is φ = 673723006.

The previous prime is 673722997. The next prime is 673723009. The reversal of 673723007 is 700327376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673723007 - 2⁴ = 673722991 is a prime.

It is a super-2 number, since 2×673723007² = 907805380322244098, which contains 22 as substring.

Together with 673723009, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673723009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336861503 + 336861504.

It is an arithmetic number, because the mean of its divisors is an integer number (336861504).

Almost surely, 2^673723007 is an apocalyptic number.

673723007 is a deficient number, since it is larger than the sum of its proper divisors (1).

673723007 is an equidigital number, since it uses as much as digits as its factorization.

673723007 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 37044, while the sum is 35.

The square root of 673723007 is about 25956.1747374300. The cubic root of 673723007 is about 876.6517944502.

The spelling of 673723007 in words is "six hundred seventy-three million, seven hundred twenty-three thousand, seven".