1608697 has 2 divisors, whose sum is σ = 1608698. Its totient is φ = 1608696.

The previous prime is 1608671. The next prime is 1608703. The reversal of 1608697 is 7968061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 942841 + 665856 = 971^2 + 816^2 .

It is a cyclic number.

It is not a de Polignac number, because 1608697 - 2⁷ = 1608569 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1608617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 804348 + 804349.

It is an arithmetic number, because the mean of its divisors is an integer number (804349).

2^1608697 is an apocalyptic number.

It is an amenable number.

1608697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1608697 is an equidigital number, since it uses as much as digits as its factorization.

1608697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 1608697 is about 1268.3441961865. The cubic root of 1608697 is about 117.1722449002.

The spelling of 1608697 in words is "one million, six hundred eight thousand, six hundred ninety-seven".