947956678 has 4 divisors (see below), whose sum is σ = 1421935020. Its totient is φ = 473978338.

The previous prime is 947956673. The next prime is 947956679. The reversal of 947956678 is 876659749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 876659749 = 7 ⋅125237107.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (947956673) 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 as a sum of consecutive naturals, namely, 236989168 + ... + 236989171.

It is an arithmetic number, because the mean of its divisors is an integer number (355483755).

Almost surely, 2^947956678 is an apocalyptic number.

947956678 is a deficient number, since it is larger than the sum of its proper divisors (473978342).

947956678 is a wasteful number, since it uses less digits than its factorization.

947956678 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473978341.

The product of its digits is 22861440, while the sum is 61.

The square root of 947956678 is about 30788.9051120692. The cubic root of 947956678 is about 982.3422656177.

The spelling of 947956678 in words is "nine hundred forty-seven million, nine hundred fifty-six thousand, six hundred seventy-eight".