7450789 has 2 divisors, whose sum is σ = 7450790. Its totient is φ = 7450788.

The previous prime is 7450787. The next prime is 7450823. The reversal of 7450789 is 9870547.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5560164 + 1890625 = 2358^2 + 1375^2 .

It is an emirp because it is prime and its reverse (9870547) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7450789 - 2¹ = 7450787 is a prime.

Together with 7450787, it forms a pair of twin primes.

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

7450789 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7450787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3725394 + 3725395.

It is an arithmetic number, because the mean of its divisors is an integer number (3725395).

Almost surely, 2^7450789 is an apocalyptic number.

It is an amenable number.

7450789 is a deficient number, since it is larger than the sum of its proper divisors (1).

7450789 is an equidigital number, since it uses as much as digits as its factorization.

7450789 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 70560, while the sum is 40.

The square root of 7450789 is about 2729.6133425817. The cubic root of 7450789 is about 195.3143210369.

The spelling of 7450789 in words is "seven million, four hundred fifty thousand, seven hundred eighty-nine".