673630988 has 24 divisors (see below), whose sum is σ = 1199353008. Its totient is φ = 331001856.

The previous prime is 673630981. The next prime is 673630999. The reversal of 673630988 is 889036376.

It is a super-2 number, since 2×673630988² = 907557415987712288, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (673630981) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 58820 + ... + 69332.

It is an arithmetic number, because the mean of its divisors is an integer number (49973042).

Almost surely, 2^673630988 is an apocalyptic number.

It is an amenable number.

673630988 is a deficient number, since it is larger than the sum of its proper divisors (525722020).

673630988 is a wasteful number, since it uses less digits than its factorization.

673630988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10793 (or 10791 counting only the distinct ones).

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 673630988 is about 25954.4020929013. The cubic root of 673630988 is about 876.6118807698.

The spelling of 673630988 in words is "six hundred seventy-three million, six hundred thirty thousand, nine hundred eighty-eight".