2729986 has 24 divisors (see below), whose sum is σ = 4832460. Its totient is φ = 1153152.

The previous prime is 2729983. The next prime is 2730001. The reversal of 2729986 is 6899272.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 2059225 + 670761 = 1435^2 + 819^2 .

It is not an unprimeable number, because it can be changed into a prime (2729983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8566 + ... + 8878.

2^2729986 is an apocalyptic number.

2729986 is a deficient number, since it is larger than the sum of its proper divisors (2102474).

2729986 is a wasteful number, since it uses less digits than its factorization.

2729986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418 (or 411 counting only the distinct ones).

The product of its digits is 108864, while the sum is 43.

The square root of 2729986 is about 1652.2669275877. The cubic root of 2729986 is about 139.7612597774.

The spelling of 2729986 in words is "two million, seven hundred twenty-nine thousand, nine hundred eighty-six".