1693429 has 2 divisors, whose sum is σ = 1693430. Its totient is φ = 1693428.

The previous prime is 1693427. The next prime is 1693441. The reversal of 1693429 is 9243961.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1620529 + 72900 = 1273^2 + 270^2 .

It is a cyclic number.

It is not a de Polignac number, because 1693429 - 2¹ = 1693427 is a prime.

Together with 1693427, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1693394 and 1693403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1693427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 846714 + 846715.

It is an arithmetic number, because the mean of its divisors is an integer number (846715).

2^1693429 is an apocalyptic number.

It is an amenable number.

1693429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1693429 is an equidigital number, since it uses as much as digits as its factorization.

1693429 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 34.

The square root of 1693429 is about 1301.3181778489. The cubic root of 1693429 is about 119.1943485227.

The spelling of 1693429 in words is "one million, six hundred ninety-three thousand, four hundred twenty-nine".