720498241 has 2 divisors, whose sum is σ = 720498242. Its totient is φ = 720498240.

The previous prime is 720498223. The next prime is 720498257. The reversal of 720498241 is 142894027.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 626000400 + 94497841 = 25020^2 + 9721^2 .

It is a cyclic number.

It is not a de Polignac number, because 720498241 - 2⁵ = 720498209 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 720498241.

It is not a weakly prime, because it can be changed into another prime (720498041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360249120 + 360249121.

It is an arithmetic number, because the mean of its divisors is an integer number (360249121).

Almost surely, 2^720498241 is an apocalyptic number.

It is an amenable number.

720498241 is a deficient number, since it is larger than the sum of its proper divisors (1).

720498241 is an equidigital number, since it uses as much as digits as its factorization.

720498241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 32256, while the sum is 37.

The square root of 720498241 is about 26842.0982972643. The cubic root of 720498241 is about 896.4876441950.

The spelling of 720498241 in words is "seven hundred twenty million, four hundred ninety-eight thousand, two hundred forty-one".