947474156 has 12 divisors (see below), whose sum is σ = 1686183240. Its totient is φ = 465707520.

The previous prime is 947474123. The next prime is 947474201. The reversal of 947474156 is 651474749.

It is a super-3 number, since 3×947474156³ (a number of 28 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 947474156.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2007125 + ... + 2007596.

It is an arithmetic number, because the mean of its divisors is an integer number (140515270).

Almost surely, 2^947474156 is an apocalyptic number.

It is an amenable number.

947474156 is a deficient number, since it is larger than the sum of its proper divisors (738709084).

947474156 is a wasteful number, since it uses less digits than its factorization.

947474156 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4014784 (or 4014782 counting only the distinct ones).

The product of its digits is 846720, while the sum is 47.

The square root of 947474156 is about 30781.0681426100. The cubic root of 947474156 is about 982.1755624294.

The spelling of 947474156 in words is "nine hundred forty-seven million, four hundred seventy-four thousand, one hundred fifty-six".