7189993 has 2 divisors, whose sum is σ = 7189994. Its totient is φ = 7189992.

The previous prime is 7189943. The next prime is 7190003. The reversal of 7189993 is 3999817.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6365529 + 824464 = 2523^2 + 908^2 .

It is a cyclic number.

It is not a de Polignac number, because 7189993 - 2¹⁷ = 7058921 is a prime.

It is not a weakly prime, because it can be changed into another prime (7189933) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3594996 + 3594997.

It is an arithmetic number, because the mean of its divisors is an integer number (3594997).

Almost surely, 2^7189993 is an apocalyptic number.

It is an amenable number.

7189993 is a deficient number, since it is larger than the sum of its proper divisors (1).

7189993 is an equidigital number, since it uses as much as digits as its factorization.

7189993 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 122472, while the sum is 46.

The square root of 7189993 is about 2681.4162302783. The cubic root of 7189993 is about 193.0083757003.

The spelling of 7189993 in words is "seven million, one hundred eighty-nine thousand, nine hundred ninety-three".