12985047 has 6 divisors (see below), whose sum is σ = 18756192. Its totient is φ = 8656692.

The previous prime is 12985043. The next prime is 12985051. The reversal of 12985047 is 74058921.

12985047 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (12985043) and next prime (12985051).

It is not a de Polignac number, because 12985047 - 2² = 12985043 is a prime.

It is a super-2 number, since 2×12985047² = 337222891184418, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12985043) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 721383 + ... + 721400.

It is an arithmetic number, because the mean of its divisors is an integer number (3126032).

Almost surely, 2^12985047 is an apocalyptic number.

12985047 is a deficient number, since it is larger than the sum of its proper divisors (5771145).

12985047 is a wasteful number, since it uses less digits than its factorization.

12985047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1442789 (or 1442786 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 36.

The square root of 12985047 is about 3603.4770708303. The cubic root of 12985047 is about 235.0432816010.

The spelling of 12985047 in words is "twelve million, nine hundred eighty-five thousand, forty-seven".