909641 has 4 divisors (see below), whose sum is σ = 912912. Its totient is φ = 906372.

The previous prime is 909637. The next prime is 909679. The reversal of 909641 is 146909.

909641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 909641 - 2² = 909637 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (909611) 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, 1175 + ... + 1788.

It is an arithmetic number, because the mean of its divisors is an integer number (228228).

2⁹⁰⁹⁶⁴¹ is an apocalyptic number.

It is an amenable number.

909641 is a deficient number, since it is larger than the sum of its proper divisors (3271).

909641 is a wasteful number, since it uses less digits than its factorization.

909641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3270.

The product of its (nonzero) digits is 1944, while the sum is 29.

The square root of 909641 is about 953.7510157269. The cubic root of 909641 is about 96.8924659455.

The spelling of 909641 in words is "nine hundred nine thousand, six hundred forty-one".