1606837 has 2 divisors, whose sum is σ = 1606838. Its totient is φ = 1606836.

The previous prime is 1606817. The next prime is 1606841. The reversal of 1606837 is 7386061.

It is the 518-th star number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1418481 + 188356 = 1191^2 + 434^2 .

It is an emirp because it is prime and its reverse (7386061) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1606837 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1606799 and 1606808.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1606817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 803418 + 803419.

It is an arithmetic number, because the mean of its divisors is an integer number (803419).

2^1606837 is an apocalyptic number.

It is an amenable number.

1606837 is a deficient number, since it is larger than the sum of its proper divisors (1).

1606837 is an equidigital number, since it uses as much as digits as its factorization.

1606837 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6048, while the sum is 31.

The square root of 1606837 is about 1267.6107446689. The cubic root of 1606837 is about 117.1270687058.

The spelling of 1606837 in words is "one million, six hundred six thousand, eight hundred thirty-seven".