728981367 has 8 divisors (see below), whose sum is σ = 981412224. Its totient is φ = 481269048.

The previous prime is 728981347. The next prime is 728981371. The reversal of 728981367 is 763189827.

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

It is not a de Polignac number, because 728981367 - 2¹⁸ = 728719223 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728981347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1179273 + ... + 1179890.

It is an arithmetic number, because the mean of its divisors is an integer number (122676528).

Almost surely, 2^728981367 is an apocalyptic number.

728981367 is a deficient number, since it is larger than the sum of its proper divisors (252430857).

728981367 is a wasteful number, since it uses less digits than its factorization.

728981367 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2359269.

The product of its digits is 1016064, while the sum is 51.

The square root of 728981367 is about 26999.6549422395. The cubic root of 728981367 is about 899.9923320334.

The spelling of 728981367 in words is "seven hundred twenty-eight million, nine hundred eighty-one thousand, three hundred sixty-seven".