728567763 has 32 divisors (see below), whose sum is σ = 1218900480. Its totient is φ = 376047360.

The previous prime is 728567761. The next prime is 728567773. The reversal of 728567763 is 367765827.

It is not a de Polignac number, because 728567763 - 2¹ = 728567761 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728567761) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 26223 + ... + 46311.

It is an arithmetic number, because the mean of its divisors is an integer number (38090640).

Almost surely, 2^728567763 is an apocalyptic number.

728567763 is a deficient number, since it is larger than the sum of its proper divisors (490332717).

728567763 is a wasteful number, since it uses less digits than its factorization.

728567763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20267.

The product of its digits is 2963520, while the sum is 51.

The square root of 728567763 is about 26991.9944242733. The cubic root of 728567763 is about 899.8220895246.

The spelling of 728567763 in words is "seven hundred twenty-eight million, five hundred sixty-seven thousand, seven hundred sixty-three".