909040065 has 16 divisors (see below), whose sum is σ = 1540021248. Its totient is φ = 456302336.

The previous prime is 909040057. The next prime is 909040147. The reversal of 909040065 is 560040909.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 909040065 - 2³ = 909040057 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1782177 + ... + 1782686.

It is an arithmetic number, because the mean of its divisors is an integer number (96251328).

Almost surely, 2^909040065 is an apocalyptic number.

It is an amenable number.

909040065 is a deficient number, since it is larger than the sum of its proper divisors (630981183).

909040065 is a wasteful number, since it uses less digits than its factorization.

909040065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3564888.

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 909040065 is about 30150.2912921252. The cubic root of 909040065 is about 968.7112459558.

The spelling of 909040065 in words is "nine hundred nine million, forty thousand, sixty-five".