728904383 has 4 divisors (see below), whose sum is σ = 731005320. Its totient is φ = 726803448.

The previous prime is 728904373. The next prime is 728904409. The reversal of 728904383 is 383409827.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 728904383 - 2⁴ = 728904367 is a prime.

It is a super-2 number, since 2×728904383² = 1062603199113221378, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (728904373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049948 + ... + 1050641.

It is an arithmetic number, because the mean of its divisors is an integer number (182751330).

Almost surely, 2^728904383 is an apocalyptic number.

728904383 is a deficient number, since it is larger than the sum of its proper divisors (2100937).

728904383 is a wasteful number, since it uses less digits than its factorization.

728904383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2100936.

The product of its (nonzero) digits is 290304, while the sum is 44.

The square root of 728904383 is about 26998.2292567494. The cubic root of 728904383 is about 899.9606497199.

The spelling of 728904383 in words is "seven hundred twenty-eight million, nine hundred four thousand, three hundred eighty-three".