3608389 has 2 divisors, whose sum is σ = 3608390. Its totient is φ = 3608388.

The previous prime is 3608377. The next prime is 3608393. The reversal of 3608389 is 9838063.

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., 2505889 + 1102500 = 1583^2 + 1050^2 .

It is a cyclic number.

It is not a de Polignac number, because 3608389 - 2⁵ = 3608357 is a prime.

3608389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3608489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1804194 + 1804195.

It is an arithmetic number, because the mean of its divisors is an integer number (1804195).

Almost surely, 2^3608389 is an apocalyptic number.

It is an amenable number.

3608389 is a deficient number, since it is larger than the sum of its proper divisors (1).

3608389 is an equidigital number, since it uses as much as digits as its factorization.

3608389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3608389 is about 1899.5760053233. The cubic root of 3608389 is about 153.3808417163.

The spelling of 3608389 in words is "three million, six hundred eight thousand, three hundred eighty-nine".