1606239 has 12 divisors (see below), whose sum is σ = 2331576. Its totient is φ = 1065552.

The previous prime is 1606237. The next prime is 1606247. The reversal of 1606239 is 9326061.

It is a happy number.

It is not a de Polignac number, because 1606239 - 2¹ = 1606237 is a prime.

1606239 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606237) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2572 + ... + 3134.

It is an arithmetic number, because the mean of its divisors is an integer number (194298).

2^1606239 is an apocalyptic number.

1606239 is a deficient number, since it is larger than the sum of its proper divisors (725337).

1606239 is a wasteful number, since it uses less digits than its factorization.

1606239 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 886 (or 883 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

The square root of 1606239 is about 1267.3748458921. The cubic root of 1606239 is about 117.1125369108.

The spelling of 1606239 in words is "one million, six hundred six thousand, two hundred thirty-nine".