9645946 has 4 divisors (see below), whose sum is σ = 14468922. Its totient is φ = 4822972.

The previous prime is 9645931. The next prime is 9645949. The reversal of 9645946 is 6495469.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 6495469 = 1783 ⋅3643.

It can be written as a sum of positive squares in only one way, i.e., 7209225 + 2436721 = 2685^2 + 1561^2 .

It is not an unprimeable number, because it can be changed into a prime (9645949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2411485 + ... + 2411488.

Almost surely, 2^9645946 is an apocalyptic number.

9645946 is a deficient number, since it is larger than the sum of its proper divisors (4822976).

9645946 is a wasteful number, since it uses less digits than its factorization.

9645946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4822975.

The product of its digits is 233280, while the sum is 43.

The square root of 9645946 is about 3105.7923304690. The cubic root of 9645946 is about 212.8702362281.

The spelling of 9645946 in words is "nine million, six hundred forty-five thousand, nine hundred forty-six".