947946346 has 4 divisors (see below), whose sum is σ = 1421919522. Its totient is φ = 473973172.

The previous prime is 947946343. The next prime is 947946379. The reversal of 947946346 is 643649749.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 643649749 = 9391 ⋅68539.

It can be written as a sum of positive squares in only one way, i.e., 899100225 + 48846121 = 29985^2 + 6989^2 .

It is a junction number, because it is equal to n+sod(n) for n = 947946293 and 947946302.

It is not an unprimeable number, because it can be changed into a prime (947946341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 236986585 + ... + 236986588.

Almost surely, 2^947946346 is an apocalyptic number.

947946346 is a deficient number, since it is larger than the sum of its proper divisors (473973176).

947946346 is a wasteful number, since it uses less digits than its factorization.

947946346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473973175.

The product of its digits is 3919104, while the sum is 52.

The square root of 947946346 is about 30788.7373238982. The cubic root of 947946346 is about 982.3386966792.

The spelling of 947946346 in words is "nine hundred forty-seven million, nine hundred forty-six thousand, three hundred forty-six".