7250389 has 2 divisors, whose sum is σ = 7250390. Its totient is φ = 7250388.

The previous prime is 7250363. The next prime is 7250393. The reversal of 7250389 is 9830527.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6838225 + 412164 = 2615^2 + 642^2 .

It is a cyclic number.

It is not a de Polignac number, because 7250389 - 2¹⁷ = 7119317 is a prime.

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

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7250339) 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, 3625194 + 3625195.

It is an arithmetic number, because the mean of its divisors is an integer number (3625195).

Almost surely, 2^7250389 is an apocalyptic number.

It is an amenable number.

7250389 is a deficient number, since it is larger than the sum of its proper divisors (1).

7250389 is an equidigital number, since it uses as much as digits as its factorization.

7250389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The square root of 7250389 is about 2692.6546380849. The cubic root of 7250389 is about 193.5472935120.

The spelling of 7250389 in words is "seven million, two hundred fifty thousand, three hundred eighty-nine".