947688484 has 12 divisors (see below), whose sum is σ = 1663378444. Its totient is φ = 472437504.

The previous prime is 947688451. The next prime is 947688487. The reversal of 947688484 is 484886749.

It can be written as a sum of positive squares in 2 ways, for example, as 187142400 + 760546084 = 13680^2 + 27578^2 .

It is a super-2 number, since 2×947688484² = 1796226925412436512, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (947688487) by changing a digit.

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, 350169 + ... + 352864.

Almost surely, 2^947688484 is an apocalyptic number.

It is an amenable number.

947688484 is a deficient number, since it is larger than the sum of its proper divisors (715689960).

947688484 is a wasteful number, since it uses less digits than its factorization.

947688484 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703374 (or 703372 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 58.

The square root of 947688484 is about 30784.5494363650. The cubic root of 947688484 is about 982.2496161126.

The spelling of 947688484 in words is "nine hundred forty-seven million, six hundred eighty-eight thousand, four hundred eighty-four".