947440064 has 28 divisors (see below), whose sum is σ = 1881189024. Its totient is φ = 473439744.

The previous prime is 947440051. The next prime is 947440129. The reversal of 947440064 is 460044749.

It is a happy number.

It is a congruent number.

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 3 ways as a sum of consecutive naturals, for example, 143132 + ... + 149604.

Almost surely, 2^947440064 is an apocalyptic number.

It is an amenable number.

947440064 is a deficient number, since it is larger than the sum of its proper divisors (933748960).

947440064 is a wasteful number, since it uses less digits than its factorization.

947440064 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8772 (or 8762 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 38.

The square root of 947440064 is about 30780.5143556764. The cubic root of 947440064 is about 982.1637820796.

The spelling of 947440064 in words is "nine hundred forty-seven million, four hundred forty thousand, sixty-four".