9946547720 has 16 divisors (see below), whose sum is σ = 22379732460. Its totient is φ = 3978619072.

The previous prime is 9946547711. The next prime is 9946547729. The reversal of 9946547720 is 277456499.

It is an interprime number because it is at equal distance from previous prime (9946547711) and next prime (9946547729).

It can be written as a sum of positive squares in 2 ways, for example, as 9699492196 + 247055524 = 98486^2 + 15718^2 .

It is not an unprimeable number, because it can be changed into a prime (9946547729) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 124331807 + ... + 124331886.

Almost surely, 2^9946547720 is an apocalyptic number.

It is an amenable number.

9946547720 is an abundant number, since it is smaller than the sum of its proper divisors (12433184740).

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

9946547720 is a wasteful number, since it uses less digits than its factorization.

9946547720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 248663704 (or 248663700 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The square root of 9946547720 is about 99732.3804990135. The cubic root of 9946547720 is about 2150.5891819558.

The spelling of 9946547720 in words is "nine billion, nine hundred forty-six million, five hundred forty-seven thousand, seven hundred twenty".