9947490 has 96 divisors (see below), whose sum is σ = 28465344. Its totient is φ = 2217600.

The previous prime is 9947489. The next prime is 9947501. The reversal of 9947490 is 947499.

9947490 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 98440 + ... + 98540.

It is an arithmetic number, because the mean of its divisors is an integer number (296514).

Almost surely, 2^9947490 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 9947490, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14232672).

9947490 is an abundant number, since it is smaller than the sum of its proper divisors (18517854).

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

9947490 is a wasteful number, since it uses less digits than its factorization.

9947490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 192 (or 185 counting only the distinct ones).

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 9947490 is about 3153.9641722759. The cubic root of 9947490 is about 215.0657091387.

The spelling of 9947490 in words is "nine million, nine hundred forty-seven thousand, four hundred ninety".