1327421 has 8 divisors (see below), whose sum is σ = 1380864. Its totient is φ = 1275120.

The previous prime is 1327409. The next prime is 1327427. The reversal of 1327421 is 1247231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1327421 - 2¹⁸ = 1065277 is a prime.

It is a super-2 number, since 2×1327421² = 3524093022482, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1327393 and 1327402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1327427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2636 + ... + 3098.

It is an arithmetic number, because the mean of its divisors is an integer number (172608).

2^1327421 is an apocalyptic number.

It is an amenable number.

1327421 is a deficient number, since it is larger than the sum of its proper divisors (53443).

1327421 is an equidigital number, since it uses as much as digits as its factorization.

1327421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571.

The product of its digits is 336, while the sum is 20.

The square root of 1327421 is about 1152.1375785903. The cubic root of 1327421 is about 109.9013164539.

The spelling of 1327421 in words is "one million, three hundred twenty-seven thousand, four hundred twenty-one".