1406039 has 2 divisors, whose sum is σ = 1406040. Its totient is φ = 1406038.

The previous prime is 1406033. The next prime is 1406051. The reversal of 1406039 is 9306041.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1406039 - 2¹² = 1401943 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1406033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 703019 + 703020.

It is an arithmetic number, because the mean of its divisors is an integer number (703020).

2^1406039 is an apocalyptic number.

1406039 is a deficient number, since it is larger than the sum of its proper divisors (1).

1406039 is an equidigital number, since it uses as much as digits as its factorization.

1406039 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 1406039 is about 1185.7651538142. The cubic root of 1406039 is about 112.0295149679.

The spelling of 1406039 in words is "one million, four hundred six thousand, thirty-nine".