7021489369 has 2 divisors, whose sum is σ = 7021489370. Its totient is φ = 7021489368.

The previous prime is 7021489361. The next prime is 7021489403. The reversal of 7021489369 is 9639841207.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 4017024400 + 3004464969 = 63380^2 + 54813^2 .

It is a cyclic number.

It is not a de Polignac number, because 7021489369 - 2³ = 7021489361 is a prime.

It is a super-2 number, since 2×7021489369² = 98602625917960036322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (7021489361) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3510744684 + 3510744685.

It is an arithmetic number, because the mean of its divisors is an integer number (3510744685).

Almost surely, 2^7021489369 is an apocalyptic number.

It is an amenable number.

7021489369 is a deficient number, since it is larger than the sum of its proper divisors (1).

7021489369 is an equidigital number, since it uses as much as digits as its factorization.

7021489369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 653184, while the sum is 49.

The square root of 7021489369 is about 83794.3277853579. The cubic root of 7021489369 is about 1914.8866918213.

The spelling of 7021489369 in words is "seven billion, twenty-one million, four hundred eighty-nine thousand, three hundred sixty-nine".