2689700728 has 32 divisors (see below), whose sum is σ = 5924867760. Its totient is φ = 1128545280.

The previous prime is 2689700723. The next prime is 2689700779. The reversal of 2689700728 is 8270079862.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2689700723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1174425 + ... + 1176712.

Almost surely, 2^2689700728 is an apocalyptic number.

It is an amenable number.

2689700728 is an abundant number, since it is smaller than the sum of its proper divisors (3235167032).

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

2689700728 is a wasteful number, since it uses less digits than its factorization.

2689700728 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2351167 (or 2351163 counting only the distinct ones).

The product of its (nonzero) digits is 677376, while the sum is 49.

The square root of 2689700728 is about 51862.3247454257. The cubic root of 2689700728 is about 1390.7038389797.

The spelling of 2689700728 in words is "two billion, six hundred eighty-nine million, seven hundred thousand, seven hundred twenty-eight".