947676321 has 16 divisors (see below), whose sum is σ = 1420883520. Its totient is φ = 624170880.

The previous prime is 947676311. The next prime is 947676409. The reversal of 947676321 is 123676749.

947676321 is a `hidden beast` number, since 9 + 4 + 7 + 6 + 7 + 632 + 1 = 666.

It is not a de Polignac number, because 947676321 - 2¹⁰ = 947675297 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is an alternating number because its digits alternate between odd and even.

It is not an unprimeable number, because it can be changed into a prime (947676311) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209200 + ... + 213681.

It is an arithmetic number, because the mean of its divisors is an integer number (88805220).

Almost surely, 2^947676321 is an apocalyptic number.

It is an amenable number.

947676321 is a deficient number, since it is larger than the sum of its proper divisors (473207199).

947676321 is a wasteful number, since it uses less digits than its factorization.

947676321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422973 (or 422967 counting only the distinct ones).

The product of its digits is 381024, while the sum is 45.

The square root of 947676321 is about 30784.3518853329. The cubic root of 947676321 is about 982.2454139043.

The spelling of 947676321 in words is "nine hundred forty-seven million, six hundred seventy-six thousand, three hundred twenty-one".