9947037132 has 18 divisors (see below), whose sum is σ = 25143899508. Its totient is φ = 3315679032.

The previous prime is 9947037097. The next prime is 9947037137. The reversal of 9947037132 is 2317307499.

It is a tau number, because it is divible by the number of its divisors (18).

It is not an unprimeable number, because it can be changed into a prime (9947037137) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 138153258 + ... + 138153329.

It is an arithmetic number, because the mean of its divisors is an integer number (1396883306).

Almost surely, 2^9947037132 is an apocalyptic number.

It is an amenable number.

9947037132 is an abundant number, since it is smaller than the sum of its proper divisors (15196862376).

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

9947037132 is a wasteful number, since it uses less digits than its factorization.

9947037132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 276306597 (or 276306592 counting only the distinct ones).

The product of its (nonzero) digits is 285768, while the sum is 45.

The square root of 9947037132 is about 99734.8340952147. The cubic root of 9947037132 is about 2150.6244540562.

The spelling of 9947037132 in words is "nine billion, nine hundred forty-seven million, thirty-seven thousand, one hundred thirty-two".