1729487 has 2 divisors, whose sum is σ = 1729488. Its totient is φ = 1729486.

The previous prime is 1729477. The next prime is 1729493. The reversal of 1729487 is 7849271.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1729487 - 2¹⁶ = 1663951 is a prime.

It is a super-2 number, since 2×1729487² = 5982250566338, which contains 22 as substring.

It is a Chen prime.

It is an Ulam number.

It is a self number, because there is not a number n which added to its sum of digits gives 1729487.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1729447) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 864743 + 864744.

It is an arithmetic number, because the mean of its divisors is an integer number (864744).

2^1729487 is an apocalyptic number.

1729487 is a deficient number, since it is larger than the sum of its proper divisors (1).

1729487 is an equidigital number, since it uses as much as digits as its factorization.

1729487 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 28224, while the sum is 38.

The square root of 1729487 is about 1315.0996159987. The cubic root of 1729487 is about 120.0344114275.

The spelling of 1729487 in words is "one million, seven hundred twenty-nine thousand, four hundred eighty-seven".