1729380001 has 4 divisors (see below), whose sum is σ = 1753070212. Its totient is φ = 1705689792.

The previous prime is 1729379989. The next prime is 1729380031. The reversal of 1729380001 is 1000839271.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 829440000 + 899940001 = 28800^2 + 29999^2 .

It is a cyclic number.

It is not a de Polignac number, because 1729380001 - 2¹⁷ = 1729248929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1729380031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11844996 + ... + 11845141.

It is an arithmetic number, because the mean of its divisors is an integer number (438267553).

Almost surely, 2^1729380001 is an apocalyptic number.

It is an amenable number.

1729380001 is a deficient number, since it is larger than the sum of its proper divisors (23690211).

1729380001 is an equidigital number, since it uses as much as digits as its factorization.

1729380001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23690210.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 1729380001 is about 41585.8149012377. The cubic root of 1729380001 is about 1200.3193596762.

The spelling of 1729380001 in words is "one billion, seven hundred twenty-nine million, three hundred eighty thousand, one".