9169381 has 8 divisors (see below), whose sum is σ = 10394720. Its totient is φ = 8018352.

The previous prime is 9169379. The next prime is 9169399. The reversal of 9169381 is 1839619.

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

It is a cyclic number.

It is not a de Polignac number, because 9169381 - 2¹ = 9169379 is a prime.

It is a super-2 number, since 2×9169381² = 168155095846322, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 9169381.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9169301) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18315 + ... + 18808.

It is an arithmetic number, because the mean of its divisors is an integer number (1299340).

Almost surely, 2^9169381 is an apocalyptic number.

It is an amenable number.

9169381 is a deficient number, since it is larger than the sum of its proper divisors (1225339).

9169381 is a wasteful number, since it uses less digits than its factorization.

9169381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37155.

The product of its digits is 11664, while the sum is 37.

The square root of 9169381 is about 3028.0985783161. The cubic root of 9169381 is about 209.3051942536.

The spelling of 9169381 in words is "nine million, one hundred sixty-nine thousand, three hundred eighty-one".