3659396381 has 2 divisors, whose sum is σ = 3659396382. Its totient is φ = 3659396380.

The previous prime is 3659396339. The next prime is 3659396399. The reversal of 3659396381 is 1836939563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3559196281 + 100200100 = 59659^2 + 10010^2 .

It is a cyclic number.

It is not a de Polignac number, because 3659396381 - 2²² = 3655202077 is a prime.

It is a super-2 number, since 2×3659396381² = 26782363746551794322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3659396281) 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, 1829698190 + 1829698191.

It is an arithmetic number, because the mean of its divisors is an integer number (1829698191).

Almost surely, 2^3659396381 is an apocalyptic number.

It is an amenable number.

3659396381 is a deficient number, since it is larger than the sum of its proper divisors (1).

3659396381 is an equidigital number, since it uses as much as digits as its factorization.

3659396381 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3149280, while the sum is 53.

The square root of 3659396381 is about 60492.9448861601. The cubic root of 3659396381 is about 1541.0018191896.

The spelling of 3659396381 in words is "three billion, six hundred fifty-nine million, three hundred ninety-six thousand, three hundred eighty-one".