720101791 has 2 divisors, whose sum is σ = 720101792. Its totient is φ = 720101790.

The previous prime is 720101777. The next prime is 720101801. The reversal of 720101791 is 197101027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720101791 - 2²³ = 711713183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720101771) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360050895 + 360050896.

It is an arithmetic number, because the mean of its divisors is an integer number (360050896).

Almost surely, 2^720101791 is an apocalyptic number.

720101791 is a deficient number, since it is larger than the sum of its proper divisors (1).

720101791 is an equidigital number, since it uses as much as digits as its factorization.

720101791 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 882, while the sum is 28.

The square root of 720101791 is about 26834.7124262586. The cubic root of 720101791 is about 896.3231849758.

The spelling of 720101791 in words is "seven hundred twenty million, one hundred one thousand, seven hundred ninety-one".