728182929 has 4 divisors (see below), whose sum is σ = 970910576. Its totient is φ = 485455284.

The previous prime is 728182883. The next prime is 728182943. The reversal of 728182929 is 929281827.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 929281827 = 3 ⋅309760609.

It is not a de Polignac number, because 728182929 - 2⁹ = 728182417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (728182969) 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, 121363819 + ... + 121363824.

It is an arithmetic number, because the mean of its divisors is an integer number (242727644).

Almost surely, 2^728182929 is an apocalyptic number.

It is an amenable number.

728182929 is a deficient number, since it is larger than the sum of its proper divisors (242727647).

728182929 is a wasteful number, since it uses less digits than its factorization.

728182929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242727646.

The product of its digits is 290304, while the sum is 48.

The square root of 728182929 is about 26984.8648134468. The cubic root of 728182929 is about 899.6636310902.

The spelling of 728182929 in words is "seven hundred twenty-eight million, one hundred eighty-two thousand, nine hundred twenty-nine".