3626729 has 4 divisors (see below), whose sum is σ = 3840084. Its totient is φ = 3413376.

The previous prime is 3626723. The next prime is 3626741. The reversal of 3626729 is 9276263.

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: 9276263 = 1237 ⋅7499.

It can be written as a sum of positive squares in 2 ways, for example, as 1567504 + 2059225 = 1252^2 + 1435^2 .

It is a cyclic number.

It is not a de Polignac number, because 3626729 - 2¹⁶ = 3561193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3626723) 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, 106652 + ... + 106685.

It is an arithmetic number, because the mean of its divisors is an integer number (960021).

Almost surely, 2^3626729 is an apocalyptic number.

It is an amenable number.

3626729 is a deficient number, since it is larger than the sum of its proper divisors (213355).

3626729 is a wasteful number, since it uses less digits than its factorization.

3626729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213354.

The product of its digits is 27216, while the sum is 35.

The square root of 3626729 is about 1904.3972799813. The cubic root of 3626729 is about 153.6402605554.

The spelling of 3626729 in words is "three million, six hundred twenty-six thousand, seven hundred twenty-nine".