12487039 has 2 divisors, whose sum is σ = 12487040. Its totient is φ = 12487038.

The previous prime is 12487031. The next prime is 12487073. The reversal of 12487039 is 93078421.

It is an a-pointer prime, because the next prime (12487073) can be obtained adding 12487039 to its sum of digits (34).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12487039 - 2³ = 12487031 is a prime.

It is a super-2 number, since 2×12487039² = 311852285975042, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12486995 and 12487013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12487031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6243519 + 6243520.

It is an arithmetic number, because the mean of its divisors is an integer number (6243520).

Almost surely, 2^12487039 is an apocalyptic number.

12487039 is a deficient number, since it is larger than the sum of its proper divisors (1).

12487039 is an equidigital number, since it uses as much as digits as its factorization.

12487039 is an evil number, because the sum of its binary digits is even.

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

The square root of 12487039 is about 3533.7004683476. The cubic root of 12487039 is about 231.9992010971. Note that the first 3 decimals are identical.

The spelling of 12487039 in words is "twelve million, four hundred eighty-seven thousand, thirty-nine".