9699696720 has 120 divisors (see below), whose sum is σ = 37228379136. Its totient is φ = 2217072384.

The previous prime is 9699696679. The next prime is 9699696751. The reversal of 9699696720 is 276969969.

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 957232 + ... + 967311.

Almost surely, 2^9699696720 is an apocalyptic number.

9699696720 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

9699696720 is an abundant number, since it is smaller than the sum of its proper divisors (27528682416).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9699696720 is a wasteful number, since it uses less digits than its factorization.

9699696720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1924569 (or 1924560 counting only the distinct ones).

The product of its (nonzero) digits is 19840464, while the sum is 63.

The square root of 9699696720 is about 98487.0383350012. The cubic root of 9699696720 is about 2132.6490085893.

The spelling of 9699696720 in words is "nine billion, six hundred ninety-nine million, six hundred ninety-six thousand, seven hundred twenty".