1701421 has 4 divisors (see below), whose sum is σ = 1704832. Its totient is φ = 1698012.

The previous prime is 1701397. The next prime is 1701433. The reversal of 1701421 is 1241071.

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, and also an emirpimes, since its reverse is a distinct semiprime: 1241071 = 13 ⋅95467.

It is a cyclic number.

It is not a de Polignac number, because 1701421 - 2⁵ = 1701389 is a prime.

It is a Duffinian number.

1701421 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1701395 and 1701404.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1701461) 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 3 ways as a sum of consecutive naturals, for example, 795 + ... + 2008.

It is an arithmetic number, because the mean of its divisors is an integer number (426208).

2^1701421 is an apocalyptic number.

It is an amenable number.

1701421 is a deficient number, since it is larger than the sum of its proper divisors (3411).

1701421 is an equidigital number, since it uses as much as digits as its factorization.

1701421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3410.

The product of its (nonzero) digits is 56, while the sum is 16.

The square root of 1701421 is about 1304.3852958386. The cubic root of 1701421 is about 119.3815636496.

Adding to 1701421 its reverse (1241071), we get a palindrome (2942492).

The spelling of 1701421 in words is "one million, seven hundred one thousand, four hundred twenty-one".