1697949053 has 2 divisors, whose sum is σ = 1697949054. Its totient is φ = 1697949052.

The previous prime is 1697949047. The next prime is 1697949061. The reversal of 1697949053 is 3509497961.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1411730329 + 286218724 = 37573^2 + 16918^2 .

It is a cyclic number.

It is not a de Polignac number, because 1697949053 - 2⁴ = 1697949037 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1697948986 and 1697949004.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1697949073) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848974526 + 848974527.

It is an arithmetic number, because the mean of its divisors is an integer number (848974527).

Almost surely, 2^1697949053 is an apocalyptic number.

It is an amenable number.

1697949053 is a deficient number, since it is larger than the sum of its proper divisors (1).

1697949053 is an equidigital number, since it uses as much as digits as its factorization.

1697949053 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1837080, while the sum is 53.

The square root of 1697949053 is about 41206.1773645651. The cubic root of 1697949053 is about 1193.0030437323.

The spelling of 1697949053 in words is "one billion, six hundred ninety-seven million, nine hundred forty-nine thousand, fifty-three".