1606273 has 2 divisors, whose sum is σ = 1606274. Its totient is φ = 1606272.

The previous prime is 1606261. The next prime is 1606277. The reversal of 1606273 is 3726061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1317904 + 288369 = 1148^2 + 537^2 .

It is a cyclic number.

It is not a de Polignac number, because 1606273 - 2⁹ = 1605761 is a prime.

It is a super-2 number, since 2×1606273² = 5160225901058, which contains 22 as substring.

1606273 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1606277) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803136 + 803137.

It is an arithmetic number, because the mean of its divisors is an integer number (803137).

2^1606273 is an apocalyptic number.

It is an amenable number.

1606273 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606273 is an equidigital number, since it uses as much as digits as its factorization.

1606273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 25.

The square root of 1606273 is about 1267.3882593744. The cubic root of 1606273 is about 117.1133632299.

The spelling of 1606273 in words is "one million, six hundred six thousand, two hundred seventy-three".