9161893 has 4 divisors (see below), whose sum is σ = 9866668. Its totient is φ = 8457120.

The previous prime is 9161891. The next prime is 9161897. The reversal of 9161893 is 3981619.

9161893 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

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 2365444 + 6796449 = 1538^2 + 2607^2 .

It is a cyclic number.

It is not a de Polignac number, because 9161893 - 2¹ = 9161891 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9161891) 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, 352368 + ... + 352393.

It is an arithmetic number, because the mean of its divisors is an integer number (2466667).

Almost surely, 2^9161893 is an apocalyptic number.

It is an amenable number.

9161893 is a deficient number, since it is larger than the sum of its proper divisors (704775).

9161893 is a wasteful number, since it uses less digits than its factorization.

9161893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 704774.

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

The square root of 9161893 is about 3026.8619063314. The cubic root of 9161893 is about 209.2482037066.

It can be divided in two parts, 916 and 1893, that added together give a square (2809 = 53²).

The spelling of 9161893 in words is "nine million, one hundred sixty-one thousand, eight hundred ninety-three".