719791 has 2 divisors, whose sum is σ = 719792. Its totient is φ = 719790.

The previous prime is 719779. The next prime is 719801. The reversal of 719791 is 197917.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 719791 - 2¹⁵ = 687023 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719731) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359895 + 359896.

It is an arithmetic number, because the mean of its divisors is an integer number (359896).

2⁷¹⁹⁷⁹¹ is an apocalyptic number.

719791 is a deficient number, since it is larger than the sum of its proper divisors (1).

719791 is an equidigital number, since it uses as much as digits as its factorization.

719791 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3969, while the sum is 34.

The square root of 719791 is about 848.4049740543. The cubic root of 719791 is about 89.6194217438.

The spelling of 719791 in words is "seven hundred nineteen thousand, seven hundred ninety-one".