3050721 has 12 divisors (see below), whose sum is σ = 4509648. Its totient is φ = 1986264.

The previous prime is 3050693. The next prime is 3050737. The reversal of 3050721 is 1270503.

3050721 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2^k-3050721 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

3050721 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 3050694 and 3050703.

It is not an unprimeable number, because it can be changed into a prime (3050791) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3555 + ... + 4328.

It is an arithmetic number, because the mean of its divisors is an integer number (375804).

Almost surely, 2^3050721 is an apocalyptic number.

It is an amenable number.

3050721 is a deficient number, since it is larger than the sum of its proper divisors (1458927).

3050721 is a wasteful number, since it uses less digits than its factorization.

3050721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7932 (or 7929 counting only the distinct ones).

The product of its (nonzero) digits is 210, while the sum is 18.

The square root of 3050721 is about 1746.6313291591. The cubic root of 3050721 is about 145.0332226688.

The spelling of 3050721 in words is "three million, fifty thousand, seven hundred twenty-one".