3020257 has 4 divisors (see below), whose sum is σ = 3036100. Its totient is φ = 3004416.

The previous prime is 3020239. The next prime is 3020261. The reversal of 3020257 is 7520203.

It is a happy number.

3020257 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 614656 + 2405601 = 784^2 + 1551^2 .

It is a cyclic number.

It is not a de Polignac number, because 3020257 - 2¹⁵ = 2987489 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (3020357) 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 3 ways as a sum of consecutive naturals, for example, 7632 + ... + 8017.

It is an arithmetic number, because the mean of its divisors is an integer number (759025).

Almost surely, 2^3020257 is an apocalyptic number.

It is an amenable number.

3020257 is a deficient number, since it is larger than the sum of its proper divisors (15843).

3020257 is a wasteful number, since it uses less digits than its factorization.

3020257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15842.

The product of its (nonzero) digits is 420, while the sum is 19.

The square root of 3020257 is about 1737.8886615661. Note that the first 3 decimals coincide. The cubic root of 3020257 is about 144.5488474439.

The spelling of 3020257 in words is "three million, twenty thousand, two hundred fifty-seven".