12985427 has 8 divisors (see below), whose sum is σ = 15982176. Its totient is φ = 10274112.

The previous prime is 12985421. The next prime is 12985429. The reversal of 12985427 is 72458921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12985427 - 2⁸ = 12985171 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12985421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 71258 + ... + 71439.

It is an arithmetic number, because the mean of its divisors is an integer number (1997772).

Almost surely, 2^12985427 is an apocalyptic number.

12985427 is a deficient number, since it is larger than the sum of its proper divisors (2996749).

12985427 is a wasteful number, since it uses less digits than its factorization.

12985427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142717.

The product of its digits is 40320, while the sum is 38.

The square root of 12985427 is about 3603.5297972960. The cubic root of 12985427 is about 235.0455743812.

The spelling of 12985427 in words is "twelve million, nine hundred eighty-five thousand, four hundred twenty-seven".