3850621 has 2 divisors, whose sum is σ = 3850622. Its totient is φ = 3850620.

The previous prime is 3850589. The next prime is 3850633. The reversal of 3850621 is 1260583.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2134521 + 1716100 = 1461^2 + 1310^2 .

It is an emirp because it is prime and its reverse (1260583) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3850621 - 2⁵ = 3850589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3850661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1925310 + 1925311.

It is an arithmetic number, because the mean of its divisors is an integer number (1925311).

Almost surely, 2^3850621 is an apocalyptic number.

It is an amenable number.

3850621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3850621 is an equidigital number, since it uses as much as digits as its factorization.

3850621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 3850621 is about 1962.2999261071. The cubic root of 3850621 is about 156.7389470808.

The spelling of 3850621 in words is "three million, eight hundred fifty thousand, six hundred twenty-one".