4061621 has 2 divisors, whose sum is σ = 4061622. Its totient is φ = 4061620.

The previous prime is 4061609. The next prime is 4061633. The reversal of 4061621 is 1261604.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (4061609) and next prime (4061633).

It can be written as a sum of positive squares in only one way, i.e., 3591025 + 470596 = 1895^2 + 686^2 .

It is a cyclic number.

It is not a de Polignac number, because 4061621 - 2⁶ = 4061557 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 4061593 and 4061602.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4061641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2030810 + 2030811.

It is an arithmetic number, because the mean of its divisors is an integer number (2030811).

Almost surely, 2^4061621 is an apocalyptic number.

It is an amenable number.

4061621 is a deficient number, since it is larger than the sum of its proper divisors (1).

4061621 is an equidigital number, since it uses as much as digits as its factorization.

4061621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 4061621 is about 2015.3463722150. The cubic root of 4061621 is about 159.5510984952.

The spelling of 4061621 in words is "four million, sixty-one thousand, six hundred twenty-one".