7371989 has 2 divisors, whose sum is σ = 7371990. Its totient is φ = 7371988.

The previous prime is 7371967. The next prime is 7372009. The reversal of 7371989 is 9891737.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7344100 + 27889 = 2710^2 + 167^2 .

It is an emirp because it is prime and its reverse (9891737) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7371989 - 2⁸ = 7371733 is a prime.

It is a super-2 number, since 2×7371989² = 108692443632242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7371389) 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, 3685994 + 3685995.

It is an arithmetic number, because the mean of its divisors is an integer number (3685995).

Almost surely, 2^7371989 is an apocalyptic number.

It is an amenable number.

7371989 is a deficient number, since it is larger than the sum of its proper divisors (1).

7371989 is an equidigital number, since it uses as much as digits as its factorization.

7371989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 95256, while the sum is 44.

The square root of 7371989 is about 2715.1406961703. The cubic root of 7371989 is about 194.6233272167.

The spelling of 7371989 in words is "seven million, three hundred seventy-one thousand, nine hundred eighty-nine".