9439946 has 4 divisors (see below), whose sum is σ = 14159922. Its totient is φ = 4719972.

The previous prime is 9439931. The next prime is 9439957. The reversal of 9439946 is 6499349.

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: 6499349 = 19 ⋅342071.

It can be written as a sum of positive squares in only one way, i.e., 9369721 + 70225 = 3061^2 + 265^2 .

It is a super-2 number, since 2×9439946² = 178225160965832, which contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9439897 and 9439906.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2359985 + ... + 2359988.

Almost surely, 2^9439946 is an apocalyptic number.

9439946 is a deficient number, since it is larger than the sum of its proper divisors (4719976).

9439946 is a wasteful number, since it uses less digits than its factorization.

9439946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4719975.

The product of its digits is 209952, while the sum is 44.

The square root of 9439946 is about 3072.4495113834. The cubic root of 9439946 is about 211.3439580638.

The spelling of 9439946 in words is "nine million, four hundred thirty-nine thousand, nine hundred forty-six".