9505947385 has 8 divisors (see below), whose sum is σ = 12444149376. Its totient is φ = 6913416240.

The previous prime is 9505947379. The next prime is 9505947419. The reversal of 9505947385 is 5837495059.

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

It is not a de Polignac number, because 9505947385 - 2⁷ = 9505947257 is a prime.

It is a super-3 number, since 3×9505947385³ (a number of 31 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (55), and also a Moran number because the ratio is a prime number: 172835407 = 9505947385 / (9 + 5 + 0 + 5 + 9 + 4 + 7 + 3 + 8 + 5).

It is a Duffinian number.

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, 86417649 + ... + 86417758.

It is an arithmetic number, because the mean of its divisors is an integer number (1555518672).

Almost surely, 2^9505947385 is an apocalyptic number.

It is an amenable number.

9505947385 is a deficient number, since it is larger than the sum of its proper divisors (2938201991).

9505947385 is a wasteful number, since it uses less digits than its factorization.

9505947385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 172835423.

The product of its (nonzero) digits is 6804000, while the sum is 55.

The square root of 9505947385 is about 97498.4481158546. The cubic root of 9505947385 is about 2118.3536661343.

The spelling of 9505947385 in words is "nine billion, five hundred five million, nine hundred forty-seven thousand, three hundred eighty-five".