673801650 has 36 divisors (see below), whose sum is σ = 1810281642. Its totient is φ = 179680320.

The previous prime is 673801643. The next prime is 673801651. The reversal of 673801650 is 56108376.

It can be written as a sum of positive squares in 3 ways, for example, as 572979969 + 100821681 = 23937^2 + 10041^2 .

It is not an unprimeable number, because it can be changed into a prime (673801651) by changing a digit.

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 17 ways as a sum of consecutive naturals, for example, 748219 + ... + 749118.

Almost surely, 2^673801650 is an apocalyptic number.

673801650 is an abundant number, since it is smaller than the sum of its proper divisors (1136479992).

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

673801650 is a wasteful number, since it uses less digits than its factorization.

673801650 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1497355 (or 1497347 counting only the distinct ones).

The product of its (nonzero) digits is 30240, while the sum is 36.

The square root of 673801650 is about 25957.6896121361. The cubic root of 673801650 is about 876.6859033466.

The spelling of 673801650 in words is "six hundred seventy-three million, eight hundred one thousand, six hundred fifty".