9106639 has 4 divisors (see below), whose sum is σ = 9127024. Its totient is φ = 9086256.

The previous prime is 9106637. The next prime is 9106649. The reversal of 9106639 is 9366019.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 9106639 - 2¹ = 9106637 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 (9106637) 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, 9507 + ... + 10420.

It is an arithmetic number, because the mean of its divisors is an integer number (2281756).

Almost surely, 2^9106639 is an apocalyptic number.

9106639 is a deficient number, since it is larger than the sum of its proper divisors (20385).

9106639 is a wasteful number, since it uses less digits than its factorization.

9106639 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20384.

The product of its (nonzero) digits is 8748, while the sum is 34.

The square root of 9106639 is about 3017.7208287050. The cubic root of 9106639 is about 208.8267070818.

The spelling of 9106639 in words is "nine million, one hundred six thousand, six hundred thirty-nine".