9391842 has 16 divisors (see below), whose sum is σ = 20870880. Its totient is φ = 3130596.

The previous prime is 9391841. The next prime is 9391847. The reversal of 9391842 is 2481939.

It is a Smith number, since the sum of its digits (36) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 9391797 and 9391806.

It is not an unprimeable number, because it can be changed into a prime (9391841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 86908 + ... + 87015.

It is an arithmetic number, because the mean of its divisors is an integer number (1304430).

Almost surely, 2^9391842 is an apocalyptic number.

9391842 is an abundant number, since it is smaller than the sum of its proper divisors (11479038).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

9391842 is a wasteful number, since it uses less digits than its factorization.

9391842 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173934 (or 173928 counting only the distinct ones).

The product of its digits is 15552, while the sum is 36.

The square root of 9391842 is about 3064.6112314615. The cubic root of 9391842 is about 210.9843582813.

Subtracting from 9391842 its reverse (2481939), we obtain a triangular number (6909903 = T₃₇₁₇).

The spelling of 9391842 in words is "nine million, three hundred ninety-one thousand, eight hundred forty-two".