9366421 has 4 divisors (see below), whose sum is σ = 9390412. Its totient is φ = 9342432.

The previous prime is 9366419. The next prime is 9366443. The reversal of 9366421 is 1246639.

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 3186225 + 6180196 = 1785^2 + 2486^2 .

It is a cyclic number.

It is not a de Polignac number, because 9366421 - 2¹ = 9366419 is a prime.

It is a Duffinian number.

9366421 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9366481) 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, 11400 + ... + 12193.

It is an arithmetic number, because the mean of its divisors is an integer number (2347603).

Almost surely, 2^9366421 is an apocalyptic number.

It is an amenable number.

9366421 is a deficient number, since it is larger than the sum of its proper divisors (23991).

9366421 is a wasteful number, since it uses less digits than its factorization.

9366421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23990.

The product of its digits is 7776, while the sum is 31.

The square root of 9366421 is about 3060.4609129999. The cubic root of 9366421 is about 210.7938283956.

The spelling of 9366421 in words is "nine million, three hundred sixty-six thousand, four hundred twenty-one".