3007721 has 8 divisors (see below), whose sum is σ = 3109920. Its totient is φ = 2907072.

The previous prime is 3007717. The next prime is 3007723. The reversal of 3007721 is 1277003.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3007721 - 2² = 3007717 is a prime.

It is a super-2 number, since 2×3007721² = 18092771227682, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 3007693 and 3007702.

It is not an unprimeable number, because it can be changed into a prime (3007723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4550 + ... + 5168.

It is an arithmetic number, because the mean of its divisors is an integer number (388740).

Almost surely, 2^3007721 is an apocalyptic number.

It is an amenable number.

3007721 is a deficient number, since it is larger than the sum of its proper divisors (102199).

3007721 is a wasteful number, since it uses less digits than its factorization.

3007721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 775.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 3007721 is about 1734.2782360394. The cubic root of 3007721 is about 144.3485800247.

The spelling of 3007721 in words is "three million, seven thousand, seven hundred twenty-one".