9647745 has 8 divisors (see below), whose sum is σ = 15436416. Its totient is φ = 5145456.

The previous prime is 9647731. The next prime is 9647761. The reversal of 9647745 is 5477469.

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

It is not a de Polignac number, because 9647745 - 2⁸ = 9647489 is a prime.

It is an Ulam number.

It is a junction number, because it is equal to n+sod(n) for n = 9647697 and 9647706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 321577 + ... + 321606.

It is an arithmetic number, because the mean of its divisors is an integer number (1929552).

Almost surely, 2^9647745 is an apocalyptic number.

It is an amenable number.

9647745 is a deficient number, since it is larger than the sum of its proper divisors (5788671).

9647745 is a wasteful number, since it uses less digits than its factorization.

9647745 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643191.

The product of its digits is 211680, while the sum is 42.

The square root of 9647745 is about 3106.0819371034. The cubic root of 9647745 is about 212.8834690670.

The spelling of 9647745 in words is "nine million, six hundred forty-seven thousand, seven hundred forty-five".