7434404389 has 2 divisors, whose sum is σ = 7434404390. Its totient is φ = 7434404388.

The previous prime is 7434404387. The next prime is 7434404401. The reversal of 7434404389 is 9834044347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5412103489 + 2022300900 = 73567^2 + 44970^2 .

It is a cyclic number.

It is not a de Polignac number, because 7434404389 - 2¹ = 7434404387 is a prime.

Together with 7434404387, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7434404387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3717202194 + 3717202195.

It is an arithmetic number, because the mean of its divisors is an integer number (3717202195).

Almost surely, 2^7434404389 is an apocalyptic number.

It is an amenable number.

7434404389 is a deficient number, since it is larger than the sum of its proper divisors (1).

7434404389 is an equidigital number, since it uses as much as digits as its factorization.

7434404389 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1161216, while the sum is 46.

The square root of 7434404389 is about 86222.9922294512. The cubic root of 7434404389 is about 1951.7104771828.

The spelling of 7434404389 in words is "seven billion, four hundred thirty-four million, four hundred four thousand, three hundred eighty-nine".