9197613990 has 80 divisors (see below), whose sum is σ = 24786476352. Its totient is φ = 2447231616.

The previous prime is 9197613979. The next prime is 9197614033. The reversal of 9197613990 is 993167919.

9197613990 is a `hidden beast` number, since 9 + 19 + 7 + 613 + 9 + 9 + 0 = 666.

It is a super-2 number, since 2×9197613990² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 357747 + ... + 382593.

Almost surely, 2^9197613990 is an apocalyptic number.

9197613990 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 9197613990, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (12393238176).

9197613990 is an abundant number, since it is smaller than the sum of its proper divisors (15588862362).

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

9197613990 is a wasteful number, since it uses less digits than its factorization.

9197613990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25323 (or 25314 counting only the distinct ones).

The product of its (nonzero) digits is 826686, while the sum is 54.

The square root of 9197613990 is about 95904.1917227813. The cubic root of 9197613990 is about 2095.1979459166.

The spelling of 9197613990 in words is "nine billion, one hundred ninety-seven million, six hundred thirteen thousand, nine hundred ninety".