673899760 has 40 divisors (see below), whose sum is σ = 1568046960. Its totient is φ = 269348352.

The previous prime is 673899749. The next prime is 673899791. The reversal of 673899760 is 67998376.

It is a tau number, because it is divible by the number of its divisors (40).

It is a Smith number, since the sum of its digits (55) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135396 + ... + 140284.

It is an arithmetic number, because the mean of its divisors is an integer number (39201174).

Almost surely, 2^673899760 is an apocalyptic number.

It is an amenable number.

673899760 is an abundant number, since it is smaller than the sum of its proper divisors (894147200).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

673899760 is a wasteful number, since it uses less digits than its factorization.

673899760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6625 (or 6619 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 55.

The square root of 673899760 is about 25959.5793494425. The cubic root of 673899760 is about 876.7284517136.

The spelling of 673899760 in words is "six hundred seventy-three million, eight hundred ninety-nine thousand, seven hundred sixty".