753489389 has 2 divisors, whose sum is σ = 753489390. Its totient is φ = 753489388.

The previous prime is 753489377. The next prime is 753489427. The reversal of 753489389 is 983984357.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693426889 + 60062500 = 26333^2 + 7750^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-753489389 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (753489329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 376744694 + 376744695.

It is an arithmetic number, because the mean of its divisors is an integer number (376744695).

Almost surely, 2^753489389 is an apocalyptic number.

It is an amenable number.

753489389 is a deficient number, since it is larger than the sum of its proper divisors (1).

753489389 is an equidigital number, since it uses as much as digits as its factorization.

753489389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840, while the sum is 56.

The square root of 753489389 is about 27449.7611829320. The cubic root of 753489389 is about 909.9671481116.

The spelling of 753489389 in words is "seven hundred fifty-three million, four hundred eighty-nine thousand, three hundred eighty-nine".