9384722645 has 4 divisors (see below), whose sum is σ = 11261667180. Its totient is φ = 7507778112.

The previous prime is 9384722563. The next prime is 9384722663. The reversal of 9384722645 is 5462274839.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3618142801 + 5766579844 = 60151^2 + 75938^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9384722645 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 9384722593 and 9384722602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 938472260 + ... + 938472269.

It is an arithmetic number, because the mean of its divisors is an integer number (2815416795).

Almost surely, 2^9384722645 is an apocalyptic number.

It is an amenable number.

9384722645 is a deficient number, since it is larger than the sum of its proper divisors (1876944535).

9384722645 is a wasteful number, since it uses less digits than its factorization.

9384722645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1876944534.

The product of its digits is 2903040, while the sum is 50.

The square root of 9384722645 is about 96874.7781674880. The cubic root of 9384722645 is about 2109.3103355379.

The spelling of 9384722645 in words is "nine billion, three hundred eighty-four million, seven hundred twenty-two thousand, six hundred forty-five".