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BaseRepresentation
bin100110001001…
…010101010001
3200211001000011
4212021111101
510024442242
6554154521
7150665431
oct46112521
920731004
109999697
11570aa14
123422a41
1320c16a6
1414842c1
15d27d17
hex989551

9999697 has 4 divisors (see below), whose sum is σ = 10006336. Its totient is φ = 9993060.

The previous prime is 9999677. The next prime is 9999713. The reversal of 9999697 is 7969999.

It is a happy number.

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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9999697 - 223 = 1611089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (9999637) 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, 148 + ... + 4474.

It is an arithmetic number, because the mean of its divisors is an integer number (2501584).

Almost surely, 29999697 is an apocalyptic number.

It is an amenable number.

9999697 is a deficient number, since it is larger than the sum of its proper divisors (6639).

9999697 is a wasteful number, since it uses less digits than its factorization.

9999697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6638.

The product of its digits is 2480058, while the sum is 58.

The square root of 9999697 is about 3162.2297512989. The cubic root of 9999697 is about 215.4412930022.

The spelling of 9999697 in words is "nine million, nine hundred ninety-nine thousand, six hundred ninety-seven".

Divisors: 1 2311 4327 9999697