1406559 has 16 divisors (see below), whose sum is σ = 2338560. Its totient is φ = 730560.

The previous prime is 1406557. The next prime is 1406591. The reversal of 1406559 is 9556041.

It is not a de Polignac number, because 1406559 - 2¹ = 1406557 is a prime.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1406557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2814 + ... + 3275.

It is an arithmetic number, because the mean of its divisors is an integer number (146160).

2^1406559 is an apocalyptic number.

1406559 is a deficient number, since it is larger than the sum of its proper divisors (932001).

1406559 is a wasteful number, since it uses less digits than its factorization.

1406559 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6110.

The product of its (nonzero) digits is 5400, while the sum is 30.

The square root of 1406559 is about 1185.9844012465. The cubic root of 1406559 is about 112.0433240130.

The spelling of 1406559 in words is "one million, four hundred six thousand, five hundred fifty-nine".