728206766 has 8 divisors (see below), whose sum is σ = 1248354480. Its totient is φ = 312088608.

The previous prime is 728206751. The next prime is 728206789. The reversal of 728206766 is 667602827.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26007371 + ... + 26007398.

It is an arithmetic number, because the mean of its divisors is an integer number (156044310).

Almost surely, 2^728206766 is an apocalyptic number.

728206766 is a deficient number, since it is larger than the sum of its proper divisors (520147714).

728206766 is a wasteful number, since it uses less digits than its factorization.

728206766 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52014778.

The product of its (nonzero) digits is 338688, while the sum is 44.

The square root of 728206766 is about 26985.3064833439. The cubic root of 728206766 is about 899.6734477846.

The spelling of 728206766 in words is "seven hundred twenty-eight million, two hundred six thousand, seven hundred sixty-six".