720896266 has 16 divisors (see below), whose sum is σ = 1089146880. Its totient is φ = 357855120.

The previous prime is 720896263. The next prime is 720896303. The reversal of 720896266 is 662698027.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (720896261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 230320 + ... + 233428.

It is an arithmetic number, because the mean of its divisors is an integer number (68071680).

Almost surely, 2^720896266 is an apocalyptic number.

720896266 is a deficient number, since it is larger than the sum of its proper divisors (368250614).

720896266 is a wasteful number, since it uses less digits than its factorization.

720896266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3909.

The product of its (nonzero) digits is 435456, while the sum is 46.

The square root of 720896266 is about 26849.5114666915. The cubic root of 720896266 is about 896.6526960936.

The spelling of 720896266 in words is "seven hundred twenty million, eight hundred ninety-six thousand, two hundred sixty-six".