1606069 has 8 divisors (see below), whose sum is σ = 1653912. Its totient is φ = 1559040.

The previous prime is 1606009. The next prime is 1606081. The reversal of 1606069 is 9606061.

1606069 = T₃₀ + T₃₁ + ... + T₂₁₂.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 237169 + 1368900 = 487^2 + 1170^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1606069 - 2⁷ = 1605941 is a prime.

It is a super-2 number, since 2×1606069² = 5158915265522, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 12.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1606009) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6777 + ... + 7009.

It is an arithmetic number, because the mean of its divisors is an integer number (206739).

2^1606069 is an apocalyptic number.

It is an amenable number.

1606069 is a deficient number, since it is larger than the sum of its proper divisors (47843).

1606069 is a wasteful number, since it uses less digits than its factorization.

1606069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407.

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 1606069 is about 1267.3077763511. The cubic root of 1606069 is about 117.1084051401.

It can be divided in two parts, 16060 and 69, that added together give a square (16129 = 127²).

The spelling of 1606069 in words is "one million, six hundred six thousand, sixty-nine".