9397969920 has 880 divisors, whose sum is σ = 37664275968. Its totient is φ = 2229534720.

The previous prime is 9397969909. The next prime is 9397969957. The reversal of 9397969920 is 299697939.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 218557419 + ... + 218557461.

Almost surely, 2^9397969920 is an apocalyptic number.

9397969920 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9397969920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18832137984).

9397969920 is an abundant number, since it is smaller than the sum of its proper divisors (28266306048).

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

9397969920 is a wasteful number, since it uses less digits than its factorization.

9397969920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128 (or 101 counting only the distinct ones).

The product of its (nonzero) digits is 14880348, while the sum is 63.

The square root of 9397969920 is about 96943.1272447923. The cubic root of 9397969920 is about 2110.3023547909.

The spelling of 9397969920 in words is "nine billion, three hundred ninety-seven million, nine hundred sixty-nine thousand, nine hundred twenty".