1742969 has 2 divisors, whose sum is σ = 1742970. Its totient is φ = 1742968.

The previous prime is 1742947. The next prime is 1742971. The reversal of 1742969 is 9692471.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1123600 + 619369 = 1060^2 + 787^2 .

It is a cyclic number.

It is not a de Polignac number, because 1742969 - 2¹² = 1738873 is a prime.

It is a super-2 number, since 2×1742969² = 6075881869922, which contains 22 as substring.

It is a Sophie Germain prime.

Together with 1742971, it forms a pair of twin primes.

It is a Chen prime.

It is a Curzon number.

It is a plaindrome in base 15.

It is not a weakly prime, because it can be changed into another prime (1742989) 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, 871484 + 871485.

It is an arithmetic number, because the mean of its divisors is an integer number (871485).

2^1742969 is an apocalyptic number.

It is an amenable number.

1742969 is a deficient number, since it is larger than the sum of its proper divisors (1).

1742969 is an equidigital number, since it uses as much as digits as its factorization.

1742969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27216, while the sum is 38.

The square root of 1742969 is about 1320.2155127100. The cubic root of 1742969 is about 120.3455088717.

The spelling of 1742969 in words is "one million, seven hundred forty-two thousand, nine hundred sixty-nine".