1006493 has 2 divisors, whose sum is σ = 1006494. Its totient is φ = 1006492.

The previous prime is 1006471. The next prime is 1006507. The reversal of 1006493 is 3946001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1006009 + 484 = 1003^2 + 22^2 .

It is a cyclic number.

It is not a de Polignac number, because 1006493 - 2⁸ = 1006237 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1006433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 503246 + 503247.

It is an arithmetic number, because the mean of its divisors is an integer number (503247).

2^1006493 is an apocalyptic number.

It is an amenable number.

1006493 is a deficient number, since it is larger than the sum of its proper divisors (1).

1006493 is an equidigital number, since it uses as much as digits as its factorization.

1006493 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 23.

The square root of 1006493 is about 1003.2412471584. The cubic root of 1006493 is about 100.2159665819.

The spelling of 1006493 in words is "one million, six thousand, four hundred ninety-three".