2728921704 has 32 divisors (see below), whose sum is σ = 6829388640. Its totient is φ = 908696000.

The previous prime is 2728921703. The next prime is 2728921729. The reversal of 2728921704 is 4071298272.

It is not an unprimeable number, because it can be changed into a prime (2728921703) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35247 + ... + 81854.

It is an arithmetic number, because the mean of its divisors is an integer number (213418395).

Almost surely, 2^2728921704 is an apocalyptic number.

2728921704 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

2728921704 is an abundant number, since it is smaller than the sum of its proper divisors (4100466936).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2728921704 is a wasteful number, since it uses less digits than its factorization.

2728921704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 118081 (or 118077 counting only the distinct ones).

The product of its (nonzero) digits is 112896, while the sum is 42.

The square root of 2728921704 is about 52239.0821512017. The cubic root of 2728921704 is about 1397.4309525400.

The spelling of 2728921704 in words is "two billion, seven hundred twenty-eight million, nine hundred twenty-one thousand, seven hundred four".