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9797760 = 273757

9797760 has 256 divisors, whose sum is σ = 40147200. Its totient is φ = 2239488.

The previous prime is 9797731. The next prime is 9797771. The reversal of 9797760 is 677979.

It is a super-2 number, since 2×97977602 = 191992202035200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a nialpdrome in base 6.

It is a zygodrome in base 6.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1399677 + ... + 1399683.

It is an arithmetic number, because the mean of its divisors is an integer number (156825).

Almost surely, 29797760 is an apocalyptic number.

9797760 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 9797760, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20073600).

9797760 is an abundant number, since it is smaller than the sum of its proper divisors (30349440).

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

9797760 is an frugal number, since it uses more digits than its factorization.

9797760 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47 (or 17 counting only the distinct ones).

The product of its (nonzero) digits is 166698, while the sum is 45.

The square root of 9797760 is about 3130.1373771769. The cubic root of 9797760 is about 213.9811902995.

The spelling of 9797760 in words is "nine million, seven hundred ninety-seven thousand, seven hundred sixty".