4250621 has 2 divisors, whose sum is σ = 4250622. Its totient is φ = 4250620.

The previous prime is 4250611. The next prime is 4250639. The reversal of 4250621 is 1260524.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3960100 + 290521 = 1990^2 + 539^2 .

It is a cyclic number.

It is not a de Polignac number, because 4250621 - 2¹⁸ = 3988477 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4250593 and 4250602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4250611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2125310 + 2125311.

It is an arithmetic number, because the mean of its divisors is an integer number (2125311).

Almost surely, 2^4250621 is an apocalyptic number.

It is an amenable number.

4250621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4250621 is an equidigital number, since it uses as much as digits as its factorization.

4250621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 480, while the sum is 20.

The square root of 4250621 is about 2061.7034219305. The cubic root of 4250621 is about 161.9884790872.

The spelling of 4250621 in words is "four million, two hundred fifty thousand, six hundred twenty-one".