12987082 has 12 divisors (see below), whose sum is σ = 20694870. Its totient is φ = 6111296.

The previous prime is 12987077. The next prime is 12987097. The reversal of 12987082 is 28078921.

It can be written as a sum of positive squares in 3 ways, for example, as 12967201 + 19881 = 3601^2 + 141^2 .

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 10657 + ... + 11812.

Almost surely, 2^12987082 is an apocalyptic number.

12987082 is a deficient number, since it is larger than the sum of its proper divisors (7707788).

12987082 is a wasteful number, since it uses less digits than its factorization.

12987082 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22505 (or 22488 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 37.

The square root of 12987082 is about 3603.7594259329. The cubic root of 12987082 is about 235.0555595207.

The spelling of 12987082 in words is "twelve million, nine hundred eighty-seven thousand, eighty-two".