9355421 has 4 divisors (see below), whose sum is σ = 9583644. Its totient is φ = 9127200.

The previous prime is 9355403. The next prime is 9355427. The reversal of 9355421 is 1245539.

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 3648100 + 5707321 = 1910^2 + 2389^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-9355421 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 (9355427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114050 + ... + 114131.

It is an arithmetic number, because the mean of its divisors is an integer number (2395911).

Almost surely, 2^9355421 is an apocalyptic number.

It is an amenable number.

9355421 is a deficient number, since it is larger than the sum of its proper divisors (228223).

9355421 is a wasteful number, since it uses less digits than its factorization.

9355421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 228222.

The product of its digits is 5400, while the sum is 29.

The square root of 9355421 is about 3058.6632701231. The cubic root of 9355421 is about 210.7112767494.

The spelling of 9355421 in words is "nine million, three hundred fifty-five thousand, four hundred twenty-one".