673913087 has 6 divisors (see below), whose sum is σ = 703343592. Its totient is φ = 644493432.

The previous prime is 673913083. The next prime is 673913117. The reversal of 673913087 is 780319376.

It is not a de Polignac number, because 673913087 - 2² = 673913083 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 (673913081) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 121793 + ... + 127205.

It is an arithmetic number, because the mean of its divisors is an integer number (117223932).

Almost surely, 2^673913087 is an apocalyptic number.

673913087 is a deficient number, since it is larger than the sum of its proper divisors (29430505).

673913087 is an frugal number, since it uses more digits than its factorization.

673913087 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10849 (or 5436 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 44.

The square root of 673913087 is about 25959.8360356918. The cubic root of 673913087 is about 876.7342310514.

The spelling of 673913087 in words is "six hundred seventy-three million, nine hundred thirteen thousand, eighty-seven".