12987034 has 4 divisors (see below), whose sum is σ = 19480554. Its totient is φ = 6493516.

The previous prime is 12987017. The next prime is 12987053. The reversal of 12987034 is 43078921.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43078921 = 883 ⋅48787.

It can be written as a sum of positive squares in only one way, i.e., 7856809 + 5130225 = 2803^2 + 2265^2 .

It is an alternating number because its digits alternate between odd and even.

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 as a sum of consecutive naturals, namely, 3246757 + ... + 3246760.

Almost surely, 2^12987034 is an apocalyptic number.

12987034 is a deficient number, since it is larger than the sum of its proper divisors (6493520).

12987034 is an equidigital number, since it uses as much as digits as its factorization.

12987034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6493519.

The product of its (nonzero) digits is 12096, while the sum is 34.

The square root of 12987034 is about 3603.7527662147. The cubic root of 12987034 is about 235.0552699334.

The spelling of 12987034 in words is "twelve million, nine hundred eighty-seven thousand, thirty-four".