720951883 has 2 divisors, whose sum is σ = 720951884. Its totient is φ = 720951882.

The previous prime is 720951877. The next prime is 720951901. The reversal of 720951883 is 388159027.

It is a weak prime.

It is an emirp because it is prime and its reverse (388159027) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-720951883 is a prime.

It is not a weakly prime, because it can be changed into another prime (720951823) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360475941 + 360475942.

It is an arithmetic number, because the mean of its divisors is an integer number (360475942).

Almost surely, 2^720951883 is an apocalyptic number.

720951883 is a deficient number, since it is larger than the sum of its proper divisors (1).

720951883 is an equidigital number, since it uses as much as digits as its factorization.

720951883 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 120960, while the sum is 43.

The square root of 720951883 is about 26850.5471638848. The cubic root of 720951883 is about 896.6757543582.

The spelling of 720951883 in words is "seven hundred twenty million, nine hundred fifty-one thousand, eight hundred eighty-three".