3306729 has 4 divisors (see below), whose sum is σ = 4408976. Its totient is φ = 2204484.

The previous prime is 3306713. The next prime is 3306731. The reversal of 3306729 is 9276033.

It is a happy number.

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 3306729 - 2⁴ = 3306713 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 = 3306696 and 3306705.

It is not an unprimeable number, because it can be changed into a prime (3306799) 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, 551119 + ... + 551124.

It is an arithmetic number, because the mean of its divisors is an integer number (1102244).

Almost surely, 2^3306729 is an apocalyptic number.

It is an amenable number.

3306729 is a deficient number, since it is larger than the sum of its proper divisors (1102247).

3306729 is a wasteful number, since it uses less digits than its factorization.

3306729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1102246.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 3306729 is about 1818.4413655656. The cubic root of 3306729 is about 148.9816802544.

The spelling of 3306729 in words is "three million, three hundred six thousand, seven hundred twenty-nine".