9699999 has 4 divisors (see below), whose sum is σ = 12933336. Its totient is φ = 6466664.

The previous prime is 9699973. The next prime is 9700003. The reversal of 9699999 is 9999969.

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 9699999 - 2¹³ = 9691807 is a prime.

9699999 is a modest number, since divided by 9999 gives 969 as remainder.

9699999 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9699919) 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, 1616664 + ... + 1616669.

It is an arithmetic number, because the mean of its divisors is an integer number (3233334).

Almost surely, 2^9699999 is an apocalyptic number.

9699999 is a deficient number, since it is larger than the sum of its proper divisors (3233337).

9699999 is a wasteful number, since it uses less digits than its factorization.

9699999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3233336.

The product of its digits is 3188646, while the sum is 60.

The square root of 9699999 is about 3114.4821399392. The cubic root of 9699999 is about 213.2671162218.

The spelling of 9699999 in words is "nine million, six hundred ninety-nine thousand, nine hundred ninety-nine".