909946 has 4 divisors (see below), whose sum is σ = 1364922. Its totient is φ = 454972.

The previous prime is 909917. The next prime is 909971. The reversal of 909946 is 649909.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 649909 = 13 ⋅49993.

It can be written as a sum of positive squares in only one way, i.e., 874225 + 35721 = 935^2 + 189^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 227485 + ... + 227488.

2⁹⁰⁹⁹⁴⁶ is an apocalyptic number.

909946 is a deficient number, since it is larger than the sum of its proper divisors (454976).

909946 is a wasteful number, since it uses less digits than its factorization.

909946 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 454975.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 909946 is about 953.9108973065. The cubic root of 909946 is about 96.9032939901.

Subtracting from 909946 its sum of digits (37), we obtain a palindrome (909909).

The spelling of 909946 in words is "nine hundred nine thousand, nine hundred forty-six".