720703149 has 4 divisors (see below), whose sum is σ = 960937536. Its totient is φ = 480468764.

The previous prime is 720703141. The next prime is 720703163. The reversal of 720703149 is 941307027.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 720703149 - 2³ = 720703141 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (720703141) 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 in 3 ways as a sum of consecutive naturals, for example, 120117189 + ... + 120117194.

It is an arithmetic number, because the mean of its divisors is an integer number (240234384).

Almost surely, 2^720703149 is an apocalyptic number.

It is an amenable number.

720703149 is a deficient number, since it is larger than the sum of its proper divisors (240234387).

720703149 is a wasteful number, since it uses less digits than its factorization.

720703149 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240234386.

The product of its (nonzero) digits is 10584, while the sum is 33.

The square root of 720703149 is about 26845.9149406385. The cubic root of 720703149 is about 896.5726224633.

The spelling of 720703149 in words is "seven hundred twenty million, seven hundred three thousand, one hundred forty-nine".