9161863 has 4 divisors (see below), whose sum is σ = 9168120. Its totient is φ = 9155608.

The previous prime is 9161839. The next prime is 9161869. The reversal of 9161863 is 3681619.

9161863 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, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 9161863 - 2¹³ = 9153671 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 (9161869) 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, 381 + ... + 4297.

It is an arithmetic number, because the mean of its divisors is an integer number (2292030).

Almost surely, 2^9161863 is an apocalyptic number.

9161863 is a deficient number, since it is larger than the sum of its proper divisors (6257).

9161863 is a wasteful number, since it uses less digits than its factorization.

9161863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6256.

The product of its digits is 7776, while the sum is 34.

The square root of 9161863 is about 3026.8569506999. The cubic root of 9161863 is about 209.2479753166.

The spelling of 9161863 in words is "nine million, one hundred sixty-one thousand, eight hundred sixty-three".