673376618 has 4 divisors (see below), whose sum is σ = 1010064930. Its totient is φ = 336688308.

The previous prime is 673376597. The next prime is 673376623. The reversal of 673376618 is 816673376.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 597460249 + 75916369 = 24443^2 + 8713^2 .

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 as a sum of consecutive naturals, namely, 168344153 + ... + 168344156.

Almost surely, 2^673376618 is an apocalyptic number.

673376618 is a deficient number, since it is larger than the sum of its proper divisors (336688312).

673376618 is a wasteful number, since it uses less digits than its factorization.

673376618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 336688311.

The product of its digits is 762048, while the sum is 47.

The square root of 673376618 is about 25949.5013054201. The cubic root of 673376618 is about 876.5015276531.

The spelling of 673376618 in words is "six hundred seventy-three million, three hundred seventy-six thousand, six hundred eighteen".