9389861 has 16 divisors (see below), whose sum is σ = 10536960. Its totient is φ = 8311680.

The previous prime is 9389827. The next prime is 9389927. The reversal of 9389861 is 1689839.

9389861 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 not a de Polignac number, because 9389861 - 2¹⁸ = 9127717 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9389161) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41996 + ... + 42218.

It is an arithmetic number, because the mean of its divisors is an integer number (658560).

Almost surely, 2^9389861 is an apocalyptic number.

It is an amenable number.

9389861 is a deficient number, since it is larger than the sum of its proper divisors (1147099).

9389861 is a wasteful number, since it uses less digits than its factorization.

9389861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 356.

The product of its digits is 93312, while the sum is 44.

The square root of 9389861 is about 3064.2880086571. The cubic root of 9389861 is about 210.9695230870.

The spelling of 9389861 in words is "nine million, three hundred eighty-nine thousand, eight hundred sixty-one".