720367903 has 2 divisors, whose sum is σ = 720367904. Its totient is φ = 720367902.

The previous prime is 720367867. The next prime is 720367931. The reversal of 720367903 is 309763027.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 720367903 - 2⁹ = 720367391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (720367103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 360183951 + 360183952.

It is an arithmetic number, because the mean of its divisors is an integer number (360183952).

Almost surely, 2^720367903 is an apocalyptic number.

720367903 is a deficient number, since it is larger than the sum of its proper divisors (1).

720367903 is an equidigital number, since it uses as much as digits as its factorization.

720367903 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 37.

The square root of 720367903 is about 26839.6703221183. The cubic root of 720367903 is about 896.4335827847.

The spelling of 720367903 in words is "seven hundred twenty million, three hundred sixty-seven thousand, nine hundred three".