720268867 has 4 divisors (see below), whose sum is σ = 720380056. Its totient is φ = 720157680.

The previous prime is 720268841. The next prime is 720268921. The reversal of 720268867 is 768862027.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 720268867 - 2¹⁹ = 719744579 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (720268837) 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, 45234 + ... + 59047.

It is an arithmetic number, because the mean of its divisors is an integer number (180095014).

Almost surely, 2^720268867 is an apocalyptic number.

720268867 is a deficient number, since it is larger than the sum of its proper divisors (111189).

720268867 is a wasteful number, since it uses less digits than its factorization.

720268867 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 111188.

The product of its (nonzero) digits is 451584, while the sum is 46.

The square root of 720268867 is about 26837.8253031053. The cubic root of 720268867 is about 896.3925004133.

The spelling of 720268867 in words is "seven hundred twenty million, two hundred sixty-eight thousand, eight hundred sixty-seven".