1724669 has 2 divisors, whose sum is σ = 1724670. Its totient is φ = 1724668.

The previous prime is 1724663. The next prime is 1724677. The reversal of 1724669 is 9664271.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1352569 + 372100 = 1163^2 + 610^2 .

It is a cyclic number.

It is not a de Polignac number, because 1724669 - 2⁸ = 1724413 is a prime.

It is a super-2 number, since 2×1724669² = 5948966319122, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1724663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 862334 + 862335.

It is an arithmetic number, because the mean of its divisors is an integer number (862335).

2^1724669 is an apocalyptic number.

It is an amenable number.

1724669 is a deficient number, since it is larger than the sum of its proper divisors (1).

1724669 is an equidigital number, since it uses as much as digits as its factorization.

1724669 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18144, while the sum is 35.

The square root of 1724669 is about 1313.2665380645. The cubic root of 1724669 is about 119.9228439203.

The spelling of 1724669 in words is "one million, seven hundred twenty-four thousand, six hundred sixty-nine".