3650989 has 2 divisors, whose sum is σ = 3650990. Its totient is φ = 3650988.

The previous prime is 3650957. The next prime is 3651019. The reversal of 3650989 is 9890563.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2125764 + 1525225 = 1458^2 + 1235^2 .

It is a cyclic number.

It is not a de Polignac number, because 3650989 - 2⁵ = 3650957 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between odd and even.

3650989 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3650929) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1825494 + 1825495.

It is an arithmetic number, because the mean of its divisors is an integer number (1825495).

Almost surely, 2^3650989 is an apocalyptic number.

It is an amenable number.

3650989 is a deficient number, since it is larger than the sum of its proper divisors (1).

3650989 is an equidigital number, since it uses as much as digits as its factorization.

3650989 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 58320, while the sum is 40.

The square root of 3650989 is about 1910.7561330531. The cubic root of 3650989 is about 153.9820775230.

The spelling of 3650989 in words is "three million, six hundred fifty thousand, nine hundred eighty-nine".