1403009 has 2 divisors, whose sum is σ = 1403010. Its totient is φ = 1403008.

The previous prime is 1402957. The next prime is 1403021. The reversal of 1403009 is 9003041.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1392400 + 10609 = 1180^2 + 103^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1403009 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1403309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 701504 + 701505.

It is an arithmetic number, because the mean of its divisors is an integer number (701505).

2^1403009 is an apocalyptic number.

It is an amenable number.

1403009 is a deficient number, since it is larger than the sum of its proper divisors (1).

1403009 is an equidigital number, since it uses as much as digits as its factorization.

1403009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1403009 is about 1184.4868087066. The cubic root of 1403009 is about 111.9489829297.

The spelling of 1403009 in words is "one million, four hundred three thousand, nine".