9999946 has 8 divisors (see below), whose sum is σ = 16363584. Its totient is φ = 4545420.

The previous prime is 9999943. The next prime is 9999971. The reversal of 9999946 is 6499999.

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 (9999943) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 227250 + ... + 227293.

It is an arithmetic number, because the mean of its divisors is an integer number (2045448).

Almost surely, 2^9999946 is an apocalyptic number.

9999946 is a deficient number, since it is larger than the sum of its proper divisors (6363638).

9999946 is a wasteful number, since it uses less digits than its factorization.

9999946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454556.

The product of its digits is 1417176, while the sum is 55.

The square root of 9999946 is about 3162.2691220072. The cubic root of 9999946 is about 215.4430812042.

Adding to 9999946 its sum of digits (55), we get a palindrome (10000001).

It can be divided in two parts, 999994 and 6, that added together give a 6-th power (1000000 = 10⁶).

The spelling of 9999946 in words is "nine million, nine hundred ninety-nine thousand, nine hundred forty-six".