8956409 has 16 divisors (see below), whose sum is σ = 11442816. Its totient is φ = 6806400.

The previous prime is 8956403. The next prime is 8956411. The reversal of 8956409 is 9046598.

8956409 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 8956409 - 2²⁰ = 7907833 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (8956403) 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, 1739 + ... + 4575.

It is an arithmetic number, because the mean of its divisors is an integer number (715176).

Almost surely, 2^8956409 is an apocalyptic number.

It is an amenable number.

8956409 is a deficient number, since it is larger than the sum of its proper divisors (2486407).

8956409 is a wasteful number, since it uses less digits than its factorization.

8956409 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2896.

The product of its (nonzero) digits is 77760, while the sum is 41.

The square root of 8956409 is about 2992.7260148567. The cubic root of 8956409 is about 207.6720129760.

The spelling of 8956409 in words is "eight million, nine hundred fifty-six thousand, four hundred nine".