673996903 has 2 divisors, whose sum is σ = 673996904. Its totient is φ = 673996902.

The previous prime is 673996891. The next prime is 673996907. The reversal of 673996903 is 309699376.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 673996903 - 2⁵ = 673996871 is a prime.

It is a super-3 number, since 3×673996903³ (a number of 27 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (673996907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 336998451 + 336998452.

It is an arithmetic number, because the mean of its divisors is an integer number (336998452).

Almost surely, 2^673996903 is an apocalyptic number.

673996903 is a deficient number, since it is larger than the sum of its proper divisors (1).

673996903 is an equidigital number, since it uses as much as digits as its factorization.

673996903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1653372, while the sum is 52.

The square root of 673996903 is about 25961.4503254344. The cubic root of 673996903 is about 876.7705766433.

The spelling of 673996903 in words is "six hundred seventy-three million, nine hundred ninety-six thousand, nine hundred three".