720583247 has 2 divisors, whose sum is σ = 720583248. Its totient is φ = 720583246.

The previous prime is 720583243. The next prime is 720583349. The reversal of 720583247 is 742385027.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 720583247 - 2² = 720583243 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720583247.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720583243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360291623 + 360291624.

It is an arithmetic number, because the mean of its divisors is an integer number (360291624).

Almost surely, 2^720583247 is an apocalyptic number.

720583247 is a deficient number, since it is larger than the sum of its proper divisors (1).

720583247 is an equidigital number, since it uses as much as digits as its factorization.

720583247 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 720583247 is about 26843.6816960714. The cubic root of 720583247 is about 896.5228993501.

The spelling of 720583247 in words is "seven hundred twenty million, five hundred eighty-three thousand, two hundred forty-seven".