728237163 has 8 divisors (see below), whose sum is σ = 971111376. Its totient is φ = 485427200.

The previous prime is 728237161. The next prime is 728237173. The reversal of 728237163 is 361732827.

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

It is a cyclic number.

It is not a de Polignac number, because 728237163 - 2¹ = 728237161 is a prime.

It is not an unprimeable number, because it can be changed into a prime (728237161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26503 + ... + 46463.

It is an arithmetic number, because the mean of its divisors is an integer number (121388922).

Almost surely, 2^728237163 is an apocalyptic number.

728237163 is a deficient number, since it is larger than the sum of its proper divisors (242874213).

728237163 is a wasteful number, since it uses less digits than its factorization.

728237163 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32125.

The product of its digits is 84672, while the sum is 39.

The square root of 728237163 is about 26985.8696913774. The cubic root of 728237163 is about 899.6859657464.

The spelling of 728237163 in words is "seven hundred twenty-eight million, two hundred thirty-seven thousand, one hundred sixty-three".