9197709738 has 48 divisors (see below), whose sum is σ = 21413386080. Its totient is φ = 2626120224.

The previous prime is 9197709737. The next prime is 9197709751. The reversal of 9197709738 is 8379077919.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (9197709737) 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, 454320 + ... + 474132.

It is an arithmetic number, because the mean of its divisors is an integer number (446112210).

Almost surely, 2^9197709738 is an apocalyptic number.

9197709738 is a gapful number since it is divisible by the number (98) formed by its first and last digit.

9197709738 is an abundant number, since it is smaller than the sum of its proper divisors (12215676342).

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

9197709738 is a wasteful number, since it uses less digits than its factorization.

9197709738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21411 (or 21404 counting only the distinct ones).

The product of its (nonzero) digits is 6001128, while the sum is 60.

The square root of 9197709738 is about 95904.6909071710. The cubic root of 9197709738 is about 2095.2052162919.

The spelling of 9197709738 in words is "nine billion, one hundred ninety-seven million, seven hundred nine thousand, seven hundred thirty-eight".