673940884 has 6 divisors (see below), whose sum is σ = 1179396554. Its totient is φ = 336970440.

The previous prime is 673940881. The next prime is 673940909. The reversal of 673940884 is 488049376.

It can be written as a sum of positive squares in only one way, i.e., 586705284 + 87235600 = 24222^2 + 9340^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (673940881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 84242607 + ... + 84242614.

Almost surely, 2^673940884 is an apocalyptic number.

It is an amenable number.

673940884 is a deficient number, since it is larger than the sum of its proper divisors (505455670).

673940884 is a wasteful number, since it uses less digits than its factorization.

673940884 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168485225 (or 168485223 counting only the distinct ones).

The product of its (nonzero) digits is 1161216, while the sum is 49.

The square root of 673940884 is about 25960.3714149085. The cubic root of 673940884 is about 876.7462851510.

The spelling of 673940884 in words is "six hundred seventy-three million, nine hundred forty thousand, eight hundred eighty-four".