3526729 has 4 divisors (see below), whose sum is σ = 3622084. Its totient is φ = 3431376.

The previous prime is 3526711. The next prime is 3526741. The reversal of 3526729 is 9276253.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9276253 = 7 ⋅1325179.

It can be written as a sum of positive squares in 2 ways, for example, as 3222025 + 304704 = 1795^2 + 552^2 .

It is a cyclic number.

It is not a de Polignac number, because 3526729 - 2⁹ = 3526217 is a prime.

It is a Duffinian number.

3526729 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3526694 and 3526703.

It is not an unprimeable number, because it can be changed into a prime (3526709) 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, 47622 + ... + 47695.

It is an arithmetic number, because the mean of its divisors is an integer number (905521).

Almost surely, 2^3526729 is an apocalyptic number.

It is an amenable number.

3526729 is a deficient number, since it is larger than the sum of its proper divisors (95355).

3526729 is an equidigital number, since it uses as much as digits as its factorization.

3526729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95354.

The product of its digits is 22680, while the sum is 34.

The square root of 3526729 is about 1877.9587322409. The cubic root of 3526729 is about 152.2149688017.

The spelling of 3526729 in words is "three million, five hundred twenty-six thousand, seven hundred twenty-nine".