1699393 has 2 divisors, whose sum is σ = 1699394. Its totient is φ = 1699392.

The previous prime is 1699391. The next prime is 1699421. The reversal of 1699393 is 3939961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1046529 + 652864 = 1023^2 + 808^2 .

It is a cyclic number.

It is not a de Polignac number, because 1699393 - 2¹ = 1699391 is a prime.

Together with 1699391, it forms a pair of twin primes.

1699393 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (1699391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 849696 + 849697.

It is an arithmetic number, because the mean of its divisors is an integer number (849697).

2^1699393 is an apocalyptic number.

It is an amenable number.

1699393 is a deficient number, since it is larger than the sum of its proper divisors (1).

1699393 is an equidigital number, since it uses as much as digits as its factorization.

1699393 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 39366, while the sum is 40.

The square root of 1699393 is about 1303.6076863842. The cubic root of 1699393 is about 119.3341127116.

The spelling of 1699393 in words is "one million, six hundred ninety-nine thousand, three hundred ninety-three".