719720039 has 2 divisors, whose sum is σ = 719720040. Its totient is φ = 719720038.

The previous prime is 719720017. The next prime is 719720069. The reversal of 719720039 is 930027917.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 719720039 - 2¹⁶ = 719654503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 719719984 and 719720011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (719720069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 359860019 + 359860020.

It is an arithmetic number, because the mean of its divisors is an integer number (359860020).

Almost surely, 2^719720039 is an apocalyptic number.

719720039 is a deficient number, since it is larger than the sum of its proper divisors (1).

719720039 is an equidigital number, since it uses as much as digits as its factorization.

719720039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23814, while the sum is 38.

The square root of 719720039 is about 26827.5984575586. The cubic root of 719720039 is about 896.1647658668.

The spelling of 719720039 in words is "seven hundred nineteen million, seven hundred twenty thousand, thirty-nine".