3670202021 has 2 divisors, whose sum is σ = 3670202022. Its totient is φ = 3670202020.

The previous prime is 3670201957. The next prime is 3670202047. The reversal of 3670202021 is 1202020763.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1998537025 + 1671664996 = 44705^2 + 40886^2 .

It is an emirp because it is prime and its reverse (1202020763) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3670202021 - 2⁶ = 3670201957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3670202821) 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, 1835101010 + 1835101011.

It is an arithmetic number, because the mean of its divisors is an integer number (1835101011).

Almost surely, 2^3670202021 is an apocalyptic number.

It is an amenable number.

3670202021 is a deficient number, since it is larger than the sum of its proper divisors (1).

3670202021 is an equidigital number, since it uses as much as digits as its factorization.

3670202021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1008, while the sum is 23.

The square root of 3670202021 is about 60582.1922762787. The cubic root of 3670202021 is about 1542.5171098922.

Adding to 3670202021 its reverse (1202020763), we get a palindrome (4872222784).

The spelling of 3670202021 in words is "three billion, six hundred seventy million, two hundred two thousand, twenty-one".