673394988 has 48 divisors (see below), whose sum is σ = 1839527424. Its totient is φ = 187704960.

The previous prime is 673394987. The next prime is 673395001. The reversal of 673394988 is 889493376.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (673394987) 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, 94320 + ... + 101207.

It is an arithmetic number, because the mean of its divisors is an integer number (38323488).

Almost surely, 2^673394988 is an apocalyptic number.

It is an amenable number.

673394988 is an abundant number, since it is smaller than the sum of its proper divisors (1166132436).

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

673394988 is a wasteful number, since it uses less digits than its factorization.

673394988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 195582 (or 195580 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 57.

The square root of 673394988 is about 25949.8552597120. The cubic root of 673394988 is about 876.5094980252.

It can be divided in two parts, 67339 and 4988, that added together give a palindrome (72327).

The spelling of 673394988 in words is "six hundred seventy-three million, three hundred ninety-four thousand, nine hundred eighty-eight".