728910766 has 16 divisors (see below), whose sum is σ = 1135783440. Its totient is φ = 350421120.

The previous prime is 728910739. The next prime is 728910773. The reversal of 728910766 is 667019827.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 12096 + ... + 40051.

It is an arithmetic number, because the mean of its divisors is an integer number (70986465).

Almost surely, 2^728910766 is an apocalyptic number.

728910766 is a deficient number, since it is larger than the sum of its proper divisors (406872674).

728910766 is a wasteful number, since it uses less digits than its factorization.

728910766 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52419.

The product of its (nonzero) digits is 254016, while the sum is 46.

The square root of 728910766 is about 26998.3474679470. The cubic root of 728910766 is about 899.9632766909.

The spelling of 728910766 in words is "seven hundred twenty-eight million, nine hundred ten thousand, seven hundred sixty-six".