9056639 has 4 divisors (see below), whose sum is σ = 9171360. Its totient is φ = 8941920.

The previous prime is 9056633. The next prime is 9056651. The reversal of 9056639 is 9366509.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9366509 = 409 ⋅22901.

It is a cyclic number.

It is not a de Polignac number, because 9056639 - 2⁴ = 9056623 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9056633) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 57242 + ... + 57399.

It is an arithmetic number, because the mean of its divisors is an integer number (2292840).

Almost surely, 2^9056639 is an apocalyptic number.

9056639 is a deficient number, since it is larger than the sum of its proper divisors (114721).

9056639 is a wasteful number, since it uses less digits than its factorization.

9056639 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114720.

The product of its (nonzero) digits is 43740, while the sum is 38.

The square root of 9056639 is about 3009.4250281408. The cubic root of 9056639 is about 208.4438178058.

The spelling of 9056639 in words is "nine million, fifty-six thousand, six hundred thirty-nine".