720607 has 2 divisors, whose sum is σ = 720608. Its totient is φ = 720606.

The previous prime is 720571. The next prime is 720611. The reversal of 720607 is 706027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720607 - 2¹¹ = 718559 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720617) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360303 + 360304.

It is an arithmetic number, because the mean of its divisors is an integer number (360304).

2⁷²⁰⁶⁰⁷ is an apocalyptic number.

720607 is a deficient number, since it is larger than the sum of its proper divisors (1).

720607 is an equidigital number, since it uses as much as digits as its factorization.

720607 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 588, while the sum is 22.

The square root of 720607 is about 848.8857402501. The cubic root of 720607 is about 89.6532750109.

The spelling of 720607 in words is "seven hundred twenty thousand, six hundred seven".