3702343621 has 2 divisors, whose sum is σ = 3702343622. Its totient is φ = 3702343620.

The previous prime is 3702343613. The next prime is 3702343637. The reversal of 3702343621 is 1263432073.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2837160225 + 865183396 = 53265^2 + 29414^2 .

It is a cyclic number.

It is not a de Polignac number, because 3702343621 - 2³ = 3702343613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3702343651) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1851171810 + 1851171811.

It is an arithmetic number, because the mean of its divisors is an integer number (1851171811).

Almost surely, 2^3702343621 is an apocalyptic number.

It is an amenable number.

3702343621 is a deficient number, since it is larger than the sum of its proper divisors (1).

3702343621 is an equidigital number, since it uses as much as digits as its factorization.

3702343621 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 31.

The square root of 3702343621 is about 60846.8866993209. The cubic root of 3702343621 is about 1547.0068663429.

Adding to 3702343621 its reverse (1263432073), we get a palindrome (4965775694).

The spelling of 3702343621 in words is "three billion, seven hundred two million, three hundred forty-three thousand, six hundred twenty-one".