1421713 has 4 divisors (see below), whose sum is σ = 1496560. Its totient is φ = 1346868.

The previous prime is 1421711. The next prime is 1421731. The reversal of 1421713 is 3171241.

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: 3171241 = 269 ⋅11789.

It is a cyclic number.

It is not a de Polignac number, because 1421713 - 2¹ = 1421711 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 74827 = 1421713 / (1 + 4 + 2 + 1 + 7 + 1 + 3).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1421711) 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, 37395 + ... + 37432.

It is an arithmetic number, because the mean of its divisors is an integer number (374140).

2^1421713 is an apocalyptic number.

It is an amenable number.

1421713 is a deficient number, since it is larger than the sum of its proper divisors (74847).

1421713 is an equidigital number, since it uses as much as digits as its factorization.

1421713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74846.

The product of its digits is 168, while the sum is 19.

The square root of 1421713 is about 1192.3560709788. The cubic root of 1421713 is about 112.4442653967. Note that the first 3 decimals are identical.

Adding to 1421713 its reverse (3171241), we get a palindrome (4592954).

The spelling of 1421713 in words is "one million, four hundred twenty-one thousand, seven hundred thirteen".