3069681 has 4 divisors (see below), whose sum is σ = 4092912. Its totient is φ = 2046452.

The previous prime is 3069667. The next prime is 3069683. The reversal of 3069681 is 1869603.

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 a cyclic number.

It is not a de Polignac number, because 3069681 - 2⁹ = 3069169 is a prime.

It is a super-2 number, since 2×3069681² = 18845882883522, which contains 22 as substring.

It is a D-number.

It is not an unprimeable number, because it can be changed into a prime (3069683) 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, 511611 + ... + 511616.

It is an arithmetic number, because the mean of its divisors is an integer number (1023228).

Almost surely, 2^3069681 is an apocalyptic number.

It is an amenable number.

3069681 is a deficient number, since it is larger than the sum of its proper divisors (1023231).

3069681 is a wasteful number, since it uses less digits than its factorization.

3069681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1023230.

The product of its (nonzero) digits is 7776, while the sum is 33.

The square root of 3069681 is about 1752.0505129704. The cubic root of 3069681 is about 145.3330592023. Note that the first 3 decimals are identical.

The spelling of 3069681 in words is "three million, sixty-nine thousand, six hundred eighty-one".