946444909 has 4 divisors (see below), whose sum is σ = 953353404. Its totient is φ = 939536416.

The previous prime is 946444883. The next prime is 946444913. The reversal of 946444909 is 909444649.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 174160809 + 772284100 = 13197^2 + 27790^2 .

It is a cyclic number.

It is not a de Polignac number, because 946444909 - 2¹⁹ = 945920621 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (946444949) 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, 3454042 + ... + 3454315.

It is an arithmetic number, because the mean of its divisors is an integer number (238338351).

Almost surely, 2^946444909 is an apocalyptic number.

It is an amenable number.

946444909 is a deficient number, since it is larger than the sum of its proper divisors (6908495).

946444909 is a wasteful number, since it uses less digits than its factorization.

946444909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6908494.

The product of its (nonzero) digits is 1119744, while the sum is 49.

The square root of 946444909 is about 30764.3447679290. The cubic root of 946444909 is about 981.8197857871.

The spelling of 946444909 in words is "nine hundred forty-six million, four hundred forty-four thousand, nine hundred nine".