3316729 has 4 divisors (see below), whose sum is σ = 3571876. Its totient is φ = 3061584.

The previous prime is 3316723. The next prime is 3316799. The reversal of 3316729 is 9276133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9276133 = 137 ⋅67709.

It can be written as a sum of positive squares in 2 ways, for example, as 898704 + 2418025 = 948^2 + 1555^2 .

It is a cyclic number.

It is not a de Polignac number, because 3316729 - 2⁷ = 3316601 is a prime.

It is a super-2 number, since 2×3316729² = 22001382518882, which contains 22 as substring.

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 3316729.

It is not an unprimeable number, because it can be changed into a prime (3316723) 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, 127554 + ... + 127579.

It is an arithmetic number, because the mean of its divisors is an integer number (892969).

Almost surely, 2^3316729 is an apocalyptic number.

It is an amenable number.

3316729 is a deficient number, since it is larger than the sum of its proper divisors (255147).

3316729 is a wasteful number, since it uses less digits than its factorization.

3316729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255146.

The product of its digits is 6804, while the sum is 31.

The square root of 3316729 is about 1821.1888973964. The cubic root of 3316729 is about 149.1317094341.

The spelling of 3316729 in words is "three million, three hundred sixteen thousand, seven hundred twenty-nine".