1734989 has 2 divisors, whose sum is σ = 1734990. Its totient is φ = 1734988.

The previous prime is 1734973. The next prime is 1735001. The reversal of 1734989 is 9894371.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1525225 + 209764 = 1235^2 + 458^2 .

It is a cyclic number.

It is not a de Polignac number, because 1734989 - 2⁴ = 1734973 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1734589) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 867494 + 867495.

It is an arithmetic number, because the mean of its divisors is an integer number (867495).

2^1734989 is an apocalyptic number.

It is an amenable number.

1734989 is a deficient number, since it is larger than the sum of its proper divisors (1).

1734989 is an equidigital number, since it uses as much as digits as its factorization.

1734989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 41.

The square root of 1734989 is about 1317.1898116824. The cubic root of 1734989 is about 120.1615647833.

The spelling of 1734989 in words is "one million, seven hundred thirty-four thousand, nine hundred eighty-nine".