673865997 has 16 divisors (see below), whose sum is σ = 1031147520. Its totient is φ = 383452272.

The previous prime is 673865987. The next prime is 673866001. The reversal of 673865997 is 799568376.

It is not a de Polignac number, because 673865997 - 2⁴ = 673865981 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 673865997.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673865917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62113 + ... + 72150.

It is an arithmetic number, because the mean of its divisors is an integer number (64446720).

Almost surely, 2^673865997 is an apocalyptic number.

It is an amenable number.

673865997 is a deficient number, since it is larger than the sum of its proper divisors (357281523).

673865997 is a wasteful number, since it uses less digits than its factorization.

673865997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134512.

The product of its digits is 17146080, while the sum is 60.

The square root of 673865997 is about 25958.9290418538. The cubic root of 673865997 is about 876.7138098342.

The spelling of 673865997 in words is "six hundred seventy-three million, eight hundred sixty-five thousand, nine hundred ninety-seven".