947640706 has 8 divisors (see below), whose sum is σ = 1422793980. Its totient is φ = 473376048.

The previous prime is 947640703. The next prime is 947640709. The reversal of 947640706 is 607046749.

It is an interprime number because it is at equal distance from previous prime (947640703) and next prime (947640709).

It can be written as a sum of positive squares in 2 ways, for example, as 931165225 + 16475481 = 30515^2 + 4059^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (947640703) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 219481 + ... + 223756.

Almost surely, 2^947640706 is an apocalyptic number.

947640706 is a deficient number, since it is larger than the sum of its proper divisors (475153274).

947640706 is a wasteful number, since it uses less digits than its factorization.

947640706 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 444308.

The product of its (nonzero) digits is 254016, while the sum is 43.

The square root of 947640706 is about 30783.7734204239. The cubic root of 947640706 is about 982.2331090319.

The spelling of 947640706 in words is "nine hundred forty-seven million, six hundred forty thousand, seven hundred six".