994847618 has 6 divisors (see below), whose sum is σ = 1492338339. Its totient is φ = 497401506.

The previous prime is 994847611. The next prime is 994847621. The reversal of 994847618 is 816748499.

It can be written as a sum of positive squares in only one way, i.e., 497423809 + 497423809 = 22303^2 + 22303^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=22303.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (994847611) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 33455 + ... + 55757.

Almost surely, 2^994847618 is an apocalyptic number.

994847618 is a deficient number, since it is larger than the sum of its proper divisors (497490721).

994847618 is an frugal number, since it uses more digits than its factorization.

994847618 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44608 (or 22305 counting only the distinct ones).

The product of its digits is 3483648, while the sum is 56.

The square root of 994847618 is about 31541.2050816071. The cubic root of 994847618 is about 998.2795811898.

The spelling of 994847618 in words is "nine hundred ninety-four million, eight hundred forty-seven thousand, six hundred eighteen".