3705460021 has 2 divisors, whose sum is σ = 3705460022. Its totient is φ = 3705460020.

The previous prime is 3705460019. The next prime is 3705460049. The reversal of 3705460021 is 1200645073.

It is an a-pointer prime, because the next prime (3705460049) can be obtained adding 3705460021 to its sum of digits (28).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1959390225 + 1746069796 = 44265^2 + 41786^2 .

It is a cyclic number.

It is not a de Polignac number, because 3705460021 - 2¹ = 3705460019 is a prime.

Together with 3705460019, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3705460001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1852730010 + 1852730011.

It is an arithmetic number, because the mean of its divisors is an integer number (1852730011).

Almost surely, 2^3705460021 is an apocalyptic number.

It is an amenable number.

3705460021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3705460021 is an equidigital number, since it uses as much as digits as its factorization.

3705460021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5040, while the sum is 28.

The square root of 3705460021 is about 60872.4898537919. The cubic root of 3705460021 is about 1547.4408023059.

The spelling of 3705460021 in words is "three billion, seven hundred five million, four hundred sixty thousand, twenty-one".