1406593 has 2 divisors, whose sum is σ = 1406594. Its totient is φ = 1406592.

The previous prime is 1406591. The next prime is 1406609. The reversal of 1406593 is 3956041.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1227664 + 178929 = 1108^2 + 423^2 .

It is an emirp because it is prime and its reverse (3956041) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1406593 - 2¹ = 1406591 is a prime.

Together with 1406591, it forms a pair of twin primes.

1406593 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1406591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703296 + 703297.

It is an arithmetic number, because the mean of its divisors is an integer number (703297).

2^1406593 is an apocalyptic number.

It is an amenable number.

1406593 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406593 is an equidigital number, since it uses as much as digits as its factorization.

1406593 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 1406593 is about 1185.9987352438. The cubic root of 1406593 is about 112.0442267935.

The spelling of 1406593 in words is "one million, four hundred six thousand, five hundred ninety-three".