7389220609 has 4 divisors (see below), whose sum is σ = 7389770580. Its totient is φ = 7388670640.

The previous prime is 7389220591. The next prime is 7389220627. The reversal of 7389220609 is 9060229837.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9060229837 = 67 ⋅135227311.

It is an interprime number because it is at equal distance from previous prime (7389220591) and next prime (7389220627).

It can be written as a sum of positive squares in 2 ways, for example, as 5208797584 + 2180423025 = 72172^2 + 46695^2 .

It is a cyclic number.

It is not a de Polignac number, because 7389220609 - 2¹³ = 7389212417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7389227609) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 254314 + ... + 281875.

It is an arithmetic number, because the mean of its divisors is an integer number (1847442645).

Almost surely, 2^7389220609 is an apocalyptic number.

It is an amenable number.

7389220609 is a deficient number, since it is larger than the sum of its proper divisors (549971).

7389220609 is a wasteful number, since it uses less digits than its factorization.

7389220609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 549970.

The product of its (nonzero) digits is 326592, while the sum is 46.

The square root of 7389220609 is about 85960.5758996530. The cubic root of 7389220609 is about 1947.7484957419.

The spelling of 7389220609 in words is "seven billion, three hundred eighty-nine million, two hundred twenty thousand, six hundred nine".