9947070 has 128 divisors (see below), whose sum is σ = 32025600. Its totient is φ = 2146176.

The previous prime is 9947039. The next prime is 9947071. The reversal of 9947070 is 707499.

It is a super-3 number, since 3×9947070³ (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9947071) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 35772 + ... + 36048.

It is an arithmetic number, because the mean of its divisors is an integer number (250200).

Almost surely, 2^9947070 is an apocalyptic number.

9947070 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

9947070 is the 1995-th heptagonal number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9947070, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16012800).

9947070 is an abundant number, since it is smaller than the sum of its proper divisors (22078530).

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

9947070 is a wasteful number, since it uses less digits than its factorization.

9947070 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 319 (or 313 counting only the distinct ones).

The product of its (nonzero) digits is 15876, while the sum is 36.

The square root of 9947070 is about 3153.8975886988. The cubic root of 9947070 is about 215.0626822823.

The spelling of 9947070 in words is "nine million, nine hundred forty-seven thousand, seventy".