947453868 has 48 divisors (see below), whose sum is σ = 2535608320. Its totient is φ = 305629200.

The previous prime is 947453851. The next prime is 947453869. The reversal of 947453868 is 868354749.

947453868 is a `hidden beast` number, since 9 + 47 + 4 + 538 + 68 = 666.

It is a super-2 number, since 2×947453868² = 1795337663976322848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is not an unprimeable number, because it can be changed into a prime (947453869) 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 15 ways as a sum of consecutive naturals, for example, 138148 + ... + 144843.

Almost surely, 2^947453868 is an apocalyptic number.

It is an amenable number.

947453868 is an abundant number, since it is smaller than the sum of its proper divisors (1588154452).

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

947453868 is a wasteful number, since it uses less digits than its factorization.

947453868 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 283035 (or 283027 counting only the distinct ones).

The product of its digits is 5806080, while the sum is 54.

The square root of 947453868 is about 30780.7385876298. The cubic root of 947453868 is about 982.1685520288.

The spelling of 947453868 in words is "nine hundred forty-seven million, four hundred fifty-three thousand, eight hundred sixty-eight".