1168421 has 4 divisors (see below), whose sum is σ = 1206144. Its totient is φ = 1130700.

The previous prime is 1168411. The next prime is 1168451. The reversal of 1168421 is 1248611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1168421 - 2⁶ = 1168357 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 (1168411) 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, 18815 + ... + 18876.

It is an arithmetic number, because the mean of its divisors is an integer number (301536).

2^1168421 is an apocalyptic number.

It is an amenable number.

1168421 is a deficient number, since it is larger than the sum of its proper divisors (37723).

1168421 is an equidigital number, since it uses as much as digits as its factorization.

1168421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37722.

The product of its digits is 384, while the sum is 23.

The square root of 1168421 is about 1080.9352432038. The cubic root of 1168421 is about 105.3254002019.

The spelling of 1168421 in words is "one million, one hundred sixty-eight thousand, four hundred twenty-one".