909441 has 16 divisors (see below), whose sum is σ = 1451520. Its totient is φ = 559440.

The previous prime is 909437. The next prime is 909451. The reversal of 909441 is 144909.

It is not a de Polignac number, because 909441 - 2² = 909437 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 909441.

It is not an unprimeable number, because it can be changed into a prime (909401) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 945 + ... + 1646.

It is an arithmetic number, because the mean of its divisors is an integer number (90720).

2⁹⁰⁹⁴⁴¹ is an apocalyptic number.

It is an amenable number.

909441 is a deficient number, since it is larger than the sum of its proper divisors (542079).

909441 is a wasteful number, since it uses less digits than its factorization.

909441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2613 (or 2607 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The square root of 909441 is about 953.6461607955. The cubic root of 909441 is about 96.8853642744.

The spelling of 909441 in words is "nine hundred nine thousand, four hundred forty-one".