1697420299 has 2 divisors, whose sum is σ = 1697420300. Its totient is φ = 1697420298.

The previous prime is 1697420297. The next prime is 1697420321. The reversal of 1697420299 is 9920247961.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1697420299 - 2¹ = 1697420297 is a prime.

Together with 1697420297, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (1697420293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848710149 + 848710150.

It is an arithmetic number, because the mean of its divisors is an integer number (848710150).

Almost surely, 2^1697420299 is an apocalyptic number.

1697420299 is a deficient number, since it is larger than the sum of its proper divisors (1).

1697420299 is an equidigital number, since it uses as much as digits as its factorization.

1697420299 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 489888, while the sum is 49.

The square root of 1697420299 is about 41199.7609095004. The cubic root of 1697420299 is about 1192.8791941934.

It can be divided in two parts, 16974 and 20299, that added together give a palindrome (37273).

The spelling of 1697420299 in words is "one billion, six hundred ninety-seven million, four hundred twenty thousand, two hundred ninety-nine".