673515903 has 4 divisors (see below), whose sum is σ = 898021208. Its totient is φ = 449010600.

The previous prime is 673515901. The next prime is 673515907. The reversal of 673515903 is 309515376.

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

It is not a de Polignac number, because 673515903 - 2¹ = 673515901 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673515901) 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, 112252648 + ... + 112252653.

It is an arithmetic number, because the mean of its divisors is an integer number (224505302).

Almost surely, 2^673515903 is an apocalyptic number.

673515903 is a deficient number, since it is larger than the sum of its proper divisors (224505305).

673515903 is a wasteful number, since it uses less digits than its factorization.

673515903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 224505304.

The product of its (nonzero) digits is 85050, while the sum is 39.

The square root of 673515903 is about 25952.1849369181. The cubic root of 673515903 is about 876.5619569857.

The spelling of 673515903 in words is "six hundred seventy-three million, five hundred fifteen thousand, nine hundred three".