947115984 has 20 divisors (see below), whose sum is σ = 2446716416. Its totient is φ = 315705312.

The previous prime is 947115977. The next prime is 947115991. The reversal of 947115984 is 489511749.

It is an interprime number because it is at equal distance from previous prime (947115977) and next prime (947115991).

It is a Smith number, since the sum of its digits (48) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 19731583 = 947115984 / (9 + 4 + 7 + 1 + 1 + 5 + 9 + 8 + 4).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9865744 + ... + 9865839.

Almost surely, 2^947115984 is an apocalyptic number.

It is an amenable number.

947115984 is an abundant number, since it is smaller than the sum of its proper divisors (1499600432).

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

947115984 is a wasteful number, since it uses less digits than its factorization.

947115984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19731594 (or 19731588 counting only the distinct ones).

The product of its digits is 362880, while the sum is 48.

The square root of 947115984 is about 30775.2495359502. The cubic root of 947115984 is about 982.0517834601.

The spelling of 947115984 in words is "nine hundred forty-seven million, one hundred fifteen thousand, nine hundred eighty-four".