945668386 has 8 divisors (see below), whose sum is σ = 1527618204. Its totient is φ = 436462320.

The previous prime is 945668363. The next prime is 945668387. The reversal of 945668386 is 683866549.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 843031225 + 102637161 = 29035^2 + 10131^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (945668387) 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 3 ways as a sum of consecutive naturals, for example, 18185905 + ... + 18185956.

Almost surely, 2^945668386 is an apocalyptic number.

945668386 is a deficient number, since it is larger than the sum of its proper divisors (581949818).

945668386 is a wasteful number, since it uses less digits than its factorization.

945668386 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36371876.

The product of its digits is 7464960, while the sum is 55.

The square root of 945668386 is about 30751.7216753794. The cubic root of 945668386 is about 981.5511967258.

The spelling of 945668386 in words is "nine hundred forty-five million, six hundred sixty-eight thousand, three hundred eighty-six".