3659401 has 2 divisors, whose sum is σ = 3659402. Its totient is φ = 3659400.

The previous prime is 3659399. The next prime is 3659441. The reversal of 3659401 is 1049563.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2805625 + 853776 = 1675^2 + 924^2 .

It is a cyclic number.

It is not a de Polignac number, because 3659401 - 2¹ = 3659399 is a prime.

Together with 3659399, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3659401.

It is not a weakly prime, because it can be changed into another prime (3659441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1829700 + 1829701.

It is an arithmetic number, because the mean of its divisors is an integer number (1829701).

Almost surely, 2^3659401 is an apocalyptic number.

3659401 is the 856-th centered decagonal number.

It is an amenable number.

3659401 is a deficient number, since it is larger than the sum of its proper divisors (1).

3659401 is an equidigital number, since it uses as much as digits as its factorization.

3659401 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3659401 is about 1912.9560894072. The cubic root of 3659401 is about 154.1002467556.

The spelling of 3659401 in words is "three million, six hundred fifty-nine thousand, four hundred one".