672247618 has 16 divisors (see below), whose sum is σ = 1154301120. Its totient is φ = 287636976.

The previous prime is 672247613. The next prime is 672247619. The reversal of 672247618 is 816742276.

It is not an unprimeable number, because it can be changed into a prime (672247613) 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, 30121 + ... + 47452.

It is an arithmetic number, because the mean of its divisors is an integer number (72143820).

Almost surely, 2^672247618 is an apocalyptic number.

672247618 is a deficient number, since it is larger than the sum of its proper divisors (482053502).

672247618 is a wasteful number, since it uses less digits than its factorization.

672247618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78201.

The product of its digits is 225792, while the sum is 43.

The square root of 672247618 is about 25927.7383896089. The cubic root of 672247618 is about 876.0113988703.

The spelling of 672247618 in words is "six hundred seventy-two million, two hundred forty-seven thousand, six hundred eighteen".