1993169429 has 2 divisors, whose sum is σ = 1993169430. Its totient is φ = 1993169428.

The previous prime is 1993169417. The next prime is 1993169491. The reversal of 1993169429 is 9249613991.

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., 1214871025 + 778298404 = 34855^2 + 27898^2 .

It is a cyclic number.

It is not a de Polignac number, because 1993169429 - 2¹² = 1993165333 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1993169929) 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, 996584714 + 996584715.

It is an arithmetic number, because the mean of its divisors is an integer number (996584715).

Almost surely, 2^1993169429 is an apocalyptic number.

It is an amenable number.

1993169429 is a deficient number, since it is larger than the sum of its proper divisors (1).

1993169429 is an equidigital number, since it uses as much as digits as its factorization.

1993169429 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 944784, while the sum is 53.

The square root of 1993169429 is about 44644.9261282847. The cubic root of 1993169429 is about 1258.4850838765.

The spelling of 1993169429 in words is "one billion, nine hundred ninety-three million, one hundred sixty-nine thousand, four hundred twenty-nine".