3786085621 has 2 divisors, whose sum is σ = 3786085622. Its totient is φ = 3786085620.

The previous prime is 3786085609. The next prime is 3786085649. The reversal of 3786085621 is 1265806873.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1972603396 + 1813482225 = 44414^2 + 42585^2 .

It is an emirp because it is prime and its reverse (1265806873) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3786085621 - 2⁷ = 3786085493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3786082621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1893042810 + 1893042811.

It is an arithmetic number, because the mean of its divisors is an integer number (1893042811).

Almost surely, 2^3786085621 is an apocalyptic number.

It is an amenable number.

3786085621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3786085621 is an equidigital number, since it uses as much as digits as its factorization.

3786085621 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 46.

The square root of 3786085621 is about 61531.1760085893. The cubic root of 3786085621 is about 1558.5837492954.

The spelling of 3786085621 in words is "three billion, seven hundred eighty-six million, eighty-five thousand, six hundred twenty-one".