1421473 has 2 divisors, whose sum is σ = 1421474. Its totient is φ = 1421472.

The previous prime is 1421471. The next prime is 1421479. The reversal of 1421473 is 3741241.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 762129 + 659344 = 873^2 + 812^2 .

It is a cyclic number.

It is not a de Polignac number, because 1421473 - 2¹ = 1421471 is a prime.

Together with 1421471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1421471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710736 + 710737.

It is an arithmetic number, because the mean of its divisors is an integer number (710737).

2^1421473 is an apocalyptic number.

It is an amenable number.

1421473 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421473 is an equidigital number, since it uses as much as digits as its factorization.

1421473 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 1421473 is about 1192.2554256534. The cubic root of 1421473 is about 112.4379377853.

The spelling of 1421473 in words is "one million, four hundred twenty-one thousand, four hundred seventy-three".