1606411 has 4 divisors (see below), whose sum is σ = 1609024. Its totient is φ = 1603800.

The previous prime is 1606403. The next prime is 1606427. The reversal of 1606411 is 1146061.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1606411 - 2³ = 1606403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1603411) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 181 + ... + 1801.

It is an arithmetic number, because the mean of its divisors is an integer number (402256).

2^1606411 is an apocalyptic number.

1606411 is a deficient number, since it is larger than the sum of its proper divisors (2613).

1606411 is an equidigital number, since it uses as much as digits as its factorization.

1606411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2612.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 1606411 is about 1267.4427008745. The cubic root of 1606411 is about 117.1167169939.

It can be divided in two parts, 1606 and 411, that multiplied together give a palindrome (660066).

The spelling of 1606411 in words is "one million, six hundred six thousand, four hundred eleven".