947891148 has 24 divisors (see below), whose sum is σ = 2212822080. Its totient is φ = 315810000.

The previous prime is 947891101. The next prime is 947891149. The reversal of 947891148 is 841198749.

It is a self number, because there is not a number n which added to its sum of digits gives 947891148.

It is not an unprimeable number, because it can be changed into a prime (947891149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8023 + ... + 44273.

It is an arithmetic number, because the mean of its divisors is an integer number (92200920).

Almost surely, 2^947891148 is an apocalyptic number.

It is an amenable number.

947891148 is an abundant number, since it is smaller than the sum of its proper divisors (1264930932).

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

947891148 is a wasteful number, since it uses less digits than its factorization.

947891148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38437 (or 38435 counting only the distinct ones).

The product of its digits is 580608, while the sum is 51.

The square root of 947891148 is about 30787.8409116326. The cubic root of 947891148 is about 982.3196294313.

The spelling of 947891148 in words is "nine hundred forty-seven million, eight hundred ninety-one thousand, one hundred forty-eight".