728746479 has 6 divisors (see below), whose sum is σ = 1052633816. Its totient is φ = 485830980.

The previous prime is 728746477. The next prime is 728746493. The reversal of 728746479 is 974647827.

It is not a de Polignac number, because 728746479 - 2¹ = 728746477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728746477) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 40485907 + ... + 40485924.

Almost surely, 2^728746479 is an apocalyptic number.

728746479 is a deficient number, since it is larger than the sum of its proper divisors (323887337).

728746479 is a wasteful number, since it uses less digits than its factorization.

728746479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 80971837 (or 80971834 counting only the distinct ones).

The product of its digits is 4741632, while the sum is 54.

The square root of 728746479 is about 26995.3047584205. The cubic root of 728746479 is about 899.8956582740.

The spelling of 728746479 in words is "seven hundred twenty-eight million, seven hundred forty-six thousand, four hundred seventy-nine".