3541729 has 4 divisors (see below), whose sum is σ = 3750084. Its totient is φ = 3333376.

The previous prime is 3541723. The next prime is 3541739. The reversal of 3541729 is 9271453.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9271453 = 41 ⋅226133.

It can be written as a sum of positive squares in 2 ways, for example, as 2331729 + 1210000 = 1527^2 + 1100^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3541729 is a prime.

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3541729.

It is not an unprimeable number, because it can be changed into a prime (3541723) 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, 104152 + ... + 104185.

It is an arithmetic number, because the mean of its divisors is an integer number (937521).

Almost surely, 2^3541729 is an apocalyptic number.

It is an amenable number.

3541729 is a deficient number, since it is larger than the sum of its proper divisors (208355).

3541729 is a wasteful number, since it uses less digits than its factorization.

3541729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208354.

The product of its digits is 7560, while the sum is 31.

The square root of 3541729 is about 1881.9481926982. The cubic root of 3541729 is about 152.4304654778.

The spelling of 3541729 in words is "three million, five hundred forty-one thousand, seven hundred twenty-nine".