947609648 has 40 divisors (see below), whose sum is σ = 2046319920. Its totient is φ = 422461440.

The previous prime is 947609633. The next prime is 947609657. The reversal of 947609648 is 846906749.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 947609648.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86513 + ... + 96848.

It is an arithmetic number, because the mean of its divisors is an integer number (51157998).

Almost surely, 2^947609648 is an apocalyptic number.

It is an amenable number.

947609648 is an abundant number, since it is smaller than the sum of its proper divisors (1098710272).

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

947609648 is a wasteful number, since it uses less digits than its factorization.

947609648 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183405 (or 183399 counting only the distinct ones).

The product of its (nonzero) digits is 2612736, while the sum is 53.

The square root of 947609648 is about 30783.2689622139. The cubic root of 947609648 is about 982.2223783372. Note that the first 3 decimals are identical.

The spelling of 947609648 in words is "nine hundred forty-seven million, six hundred nine thousand, six hundred forty-eight".