1729540853 has 4 divisors (see below), whose sum is σ = 1732979808. Its totient is φ = 1726101900.

The previous prime is 1729540847. The next prime is 1729540859. The reversal of 1729540853 is 3580459271.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (1729540847) and next prime (1729540859).

It is a cyclic number.

It is not a de Polignac number, because 1729540853 - 2⁴ = 1729540837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1729540859) 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, 1718723 + ... + 1719728.

It is an arithmetic number, because the mean of its divisors is an integer number (433244952).

Almost surely, 2^1729540853 is an apocalyptic number.

It is an amenable number.

1729540853 is a deficient number, since it is larger than the sum of its proper divisors (3438955).

1729540853 is an equidigital number, since it uses as much as digits as its factorization.

1729540853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3438954.

The product of its (nonzero) digits is 302400, while the sum is 44.

The square root of 1729540853 is about 41587.7488330398. The cubic root of 1729540853 is about 1200.3565729711.

The spelling of 1729540853 in words is "one billion, seven hundred twenty-nine million, five hundred forty thousand, eight hundred fifty-three".