3531729 has 4 divisors (see below), whose sum is σ = 4708976. Its totient is φ = 2354484.

The previous prime is 3531727. The next prime is 3531757. The reversal of 3531729 is 9271353.

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 not a de Polignac number, because 3531729 - 2¹ = 3531727 is a prime.

It is a D-number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3531696 and 3531705.

It is not an unprimeable number, because it can be changed into a prime (3531727) 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 in 3 ways as a sum of consecutive naturals, for example, 588619 + ... + 588624.

It is an arithmetic number, because the mean of its divisors is an integer number (1177244).

Almost surely, 2^3531729 is an apocalyptic number.

It is an amenable number.

3531729 is a deficient number, since it is larger than the sum of its proper divisors (1177247).

3531729 is a wasteful number, since it uses less digits than its factorization.

3531729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1177246.

The product of its digits is 5670, while the sum is 30.

The square root of 3531729 is about 1879.2894933990. The cubic root of 3531729 is about 152.2868688028.

The spelling of 3531729 in words is "three million, five hundred thirty-one thousand, seven hundred twenty-nine".