3634202381 has 2 divisors, whose sum is σ = 3634202382. Its totient is φ = 3634202380.

The previous prime is 3634202347. The next prime is 3634202389. The reversal of 3634202381 is 1832024363.

3634202381 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2527575625 + 1106626756 = 50275^2 + 33266^2 .

It is a cyclic number.

It is not a de Polignac number, because 3634202381 - 2⁶ = 3634202317 is a prime.

It is a super-2 number, since 2×3634202381² = 26414853892132138322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3634202389) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1817101190 + 1817101191.

It is an arithmetic number, because the mean of its divisors is an integer number (1817101191).

Almost surely, 2^3634202381 is an apocalyptic number.

It is an amenable number.

3634202381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3634202381 is an equidigital number, since it uses as much as digits as its factorization.

3634202381 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 32.

The square root of 3634202381 is about 60284.3460692741. The cubic root of 3634202381 is about 1537.4572054628.

The spelling of 3634202381 in words is "three billion, six hundred thirty-four million, two hundred two thousand, three hundred eighty-one".