729201391 has 2 divisors, whose sum is σ = 729201392. Its totient is φ = 729201390.

The previous prime is 729201371. The next prime is 729201449. The reversal of 729201391 is 193102927.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 729201391 - 2¹⁵ = 729168623 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (729201331) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 364600695 + 364600696.

It is an arithmetic number, because the mean of its divisors is an integer number (364600696).

Almost surely, 2^729201391 is an apocalyptic number.

729201391 is a deficient number, since it is larger than the sum of its proper divisors (1).

729201391 is an equidigital number, since it uses as much as digits as its factorization.

729201391 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6804, while the sum is 34.

The square root of 729201391 is about 27003.7292054264. The cubic root of 729201391 is about 900.0828693241.

The spelling of 729201391 in words is "seven hundred twenty-nine million, two hundred one thousand, three hundred ninety-one".