973563618 has 16 divisors (see below), whose sum is σ = 2009938176. Its totient is φ = 314052720.

The previous prime is 973563607. The next prime is 973563623. The reversal of 973563618 is 816365379.

It is a happy number.

973563618 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×973563618² = 1895652236586499848, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2616921 + ... + 2617292.

It is an arithmetic number, because the mean of its divisors is an integer number (125621136).

Almost surely, 2^973563618 is an apocalyptic number.

973563618 is an abundant number, since it is smaller than the sum of its proper divisors (1036374558).

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

973563618 is a wasteful number, since it uses less digits than its factorization.

973563618 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5234249.

The product of its digits is 816480, while the sum is 48.

The square root of 973563618 is about 31201.9809948022. The cubic root of 973563618 is about 991.1090580916.

The spelling of 973563618 in words is "nine hundred seventy-three million, five hundred sixty-three thousand, six hundred eighteen".