1697953 has 2 divisors, whose sum is σ = 1697954. Its totient is φ = 1697952.

The previous prime is 1697903. The next prime is 1697957. The reversal of 1697953 is 3597961.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1697809 + 144 = 1303^2 + 12^2 .

It is a cyclic number.

It is not a de Polignac number, because 1697953 - 2¹⁷ = 1566881 is a prime.

It is not a weakly prime, because it can be changed into another prime (1697957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848976 + 848977.

It is an arithmetic number, because the mean of its divisors is an integer number (848977).

2^1697953 is an apocalyptic number.

It is an amenable number.

1697953 is a deficient number, since it is larger than the sum of its proper divisors (1).

1697953 is an equidigital number, since it uses as much as digits as its factorization.

1697953 is an evil number, because the sum of its binary digits is even.

The product of its digits is 51030, while the sum is 40.

The square root of 1697953 is about 1303.0552559274. The cubic root of 1697953 is about 119.3003968138.

It can be divided in two parts, 16 and 97953, that added together give a square (97969 = 313²).

The spelling of 1697953 in words is "one million, six hundred ninety-seven thousand, nine hundred fifty-three".