3627989 has 2 divisors, whose sum is σ = 3627990. Its totient is φ = 3627988.

The previous prime is 3627979. The next prime is 3628007. The reversal of 3627989 is 9897263.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3179089 + 448900 = 1783^2 + 670^2 .

It is an emirp because it is prime and its reverse (9897263) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3627989 - 2⁴ = 3627973 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is an Ulam number.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3627979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1813994 + 1813995.

It is an arithmetic number, because the mean of its divisors is an integer number (1813995).

Almost surely, 2^3627989 is an apocalyptic number.

It is an amenable number.

3627989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3627989 is an equidigital number, since it uses as much as digits as its factorization.

3627989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 163296, while the sum is 44.

The square root of 3627989 is about 1904.7280645803. The cubic root of 3627989 is about 153.6580510873.

The spelling of 3627989 in words is "three million, six hundred twenty-seven thousand, nine hundred eighty-nine".