720683087 has 2 divisors, whose sum is σ = 720683088. Its totient is φ = 720683086.

The previous prime is 720683063. The next prime is 720683111. The reversal of 720683087 is 780386027.

720683087 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a balanced prime because it is at equal distance from previous prime (720683063) and next prime (720683111).

It is a cyclic number.

It is not a de Polignac number, because 720683087 - 2¹⁰ = 720682063 is a prime.

It is a super-2 number, since 2×720683087² = 1038768223775699138, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720683027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360341543 + 360341544.

It is an arithmetic number, because the mean of its divisors is an integer number (360341544).

Almost surely, 2^720683087 is an apocalyptic number.

720683087 is a deficient number, since it is larger than the sum of its proper divisors (1).

720683087 is an equidigital number, since it uses as much as digits as its factorization.

720683087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 720683087 is about 26845.5412871486. The cubic root of 720683087 is about 896.5643031773.

The spelling of 720683087 in words is "seven hundred twenty million, six hundred eighty-three thousand, eighty-seven".