716405447 has 2 divisors, whose sum is σ = 716405448. Its totient is φ = 716405446.

The previous prime is 716405441. The next prime is 716405461. The reversal of 716405447 is 744504617.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 716405447 - 2⁶ = 716405383 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 716405447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (716405441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358202723 + 358202724.

It is an arithmetic number, because the mean of its divisors is an integer number (358202724).

Almost surely, 2^716405447 is an apocalyptic number.

716405447 is a deficient number, since it is larger than the sum of its proper divisors (1).

716405447 is an equidigital number, since it uses as much as digits as its factorization.

716405447 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 38.

The square root of 716405447 is about 26765.7513811961. The cubic root of 716405447 is about 894.7869188856.

The spelling of 716405447 in words is "seven hundred sixteen million, four hundred five thousand, four hundred forty-seven".