728064963 has 16 divisors (see below), whose sum is σ = 1079203840. Its totient is φ = 485111592.

The previous prime is 728064959. The next prime is 728064973. The reversal of 728064963 is 369460827.

It is not a de Polignac number, because 728064963 - 2² = 728064959 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728064913) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51570 + ... + 64152.

It is an arithmetic number, because the mean of its divisors is an integer number (67450240).

Almost surely, 2^728064963 is an apocalyptic number.

728064963 is a deficient number, since it is larger than the sum of its proper divisors (351138877).

728064963 is a wasteful number, since it uses less digits than its factorization.

728064963 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14735 (or 14729 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 45.

The square root of 728064963 is about 26982.6789440930. The cubic root of 728064963 is about 899.6150464799.

The spelling of 728064963 in words is "seven hundred twenty-eight million, sixty-four thousand, nine hundred sixty-three".