9649899 has 24 divisors (see below), whose sum is σ = 16273920. Its totient is φ = 5395248.

The previous prime is 9649877. The next prime is 9649901. The reversal of 9649899 is 9989469.

It is a happy number.

It is not a de Polignac number, because 9649899 - 2⁵ = 9649867 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9649819) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1332 + ... + 4590.

It is an arithmetic number, because the mean of its divisors is an integer number (678080).

Almost surely, 2^9649899 is an apocalyptic number.

9649899 is a deficient number, since it is larger than the sum of its proper divisors (6624021).

9649899 is a wasteful number, since it uses less digits than its factorization.

9649899 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3319 (or 3316 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The square root of 9649899 is about 3106.4286568341. The cubic root of 9649899 is about 212.8993110028.

The spelling of 9649899 in words is "nine million, six hundred forty-nine thousand, eight hundred ninety-nine".