3682402121 has 2 divisors, whose sum is σ = 3682402122. Its totient is φ = 3682402120.

The previous prime is 3682402093. The next prime is 3682402123. The reversal of 3682402121 is 1212042863.

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., 2085200896 + 1597201225 = 45664^2 + 39965^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3682402121 is a prime.

Together with 3682402123, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (3682402123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1841201060 + 1841201061.

It is an arithmetic number, because the mean of its divisors is an integer number (1841201061).

Almost surely, 2^3682402121 is an apocalyptic number.

It is an amenable number.

3682402121 is a deficient number, since it is larger than the sum of its proper divisors (1).

3682402121 is an equidigital number, since it uses as much as digits as its factorization.

3682402121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 29.

The square root of 3682402121 is about 60682.7992185595. The cubic root of 3682402121 is about 1544.2243773588.

Adding to 3682402121 its reverse (1212042863), we get a palindrome (4894444984).

The spelling of 3682402121 in words is "three billion, six hundred eighty-two million, four hundred two thousand, one hundred twenty-one".