719728819 has 2 divisors, whose sum is σ = 719728820. Its totient is φ = 719728818.

The previous prime is 719728799. The next prime is 719728861. The reversal of 719728819 is 918827917.

719728819 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 719728819 - 2⁹ = 719728307 is a prime.

It is a super-2 number, since 2×719728819² = 1036019145798269522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (719728879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359864409 + 359864410.

It is an arithmetic number, because the mean of its divisors is an integer number (359864410).

Almost surely, 2^719728819 is an apocalyptic number.

719728819 is a deficient number, since it is larger than the sum of its proper divisors (1).

719728819 is an equidigital number, since it uses as much as digits as its factorization.

719728819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 508032, while the sum is 52.

The square root of 719728819 is about 26827.7620945169. The cubic root of 719728819 is about 896.1684100127.

The spelling of 719728819 in words is "seven hundred nineteen million, seven hundred twenty-eight thousand, eight hundred nineteen".