9636989 has 4 divisors (see below), whose sum is σ = 9730656. Its totient is φ = 9543324.

The previous prime is 9636967. The next prime is 9636997. The reversal of 9636989 is 9896369.

9636989 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 9636989 - 2⁸ = 9636733 is a prime.

It is a super-2 number, since 2×9636989² = 185743113972242, which contains 22 as substring.

It is an Ulam number.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9636689) 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, 46679 + ... + 46884.

It is an arithmetic number, because the mean of its divisors is an integer number (2432664).

Almost surely, 2^9636989 is an apocalyptic number.

It is an amenable number.

9636989 is a deficient number, since it is larger than the sum of its proper divisors (93667).

9636989 is a wasteful number, since it uses less digits than its factorization.

9636989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93666.

The product of its digits is 629856, while the sum is 50.

The square root of 9636989 is about 3104.3500124825. The cubic root of 9636989 is about 212.8043270480.

The spelling of 9636989 in words is "nine million, six hundred thirty-six thousand, nine hundred eighty-nine".