3050021 has 16 divisors (see below), whose sum is σ = 3581424. Its totient is φ = 2571264.

The previous prime is 3050009. The next prime is 3050023. The reversal of 3050021 is 1200503.

It can be written as a sum of positive squares in 8 ways, for example, as 122500 + 2927521 = 350^2 + 1711^2 .

It is a cyclic number.

It is not a de Polignac number, because 3050021 - 2⁶ = 3049957 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 3049984 and 3050011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3050023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7991 + ... + 8363.

It is an arithmetic number, because the mean of its divisors is an integer number (223839).

Almost surely, 2^3050021 is an apocalyptic number.

It is an amenable number.

3050021 is a deficient number, since it is larger than the sum of its proper divisors (531403).

3050021 is a wasteful number, since it uses less digits than its factorization.

3050021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 440.

The product of its (nonzero) digits is 30, while the sum is 11.

The square root of 3050021 is about 1746.4309319295. The cubic root of 3050021 is about 145.0221290047.

Adding to 3050021 its reverse (1200503), we get a palindrome (4250524).

The spelling of 3050021 in words is "three million, fifty thousand, twenty-one".