12270717 has 32 divisors (see below), whose sum is σ = 19042560. Its totient is φ = 7801920.

The previous prime is 12270703. The next prime is 12270733. The reversal of 12270717 is 71707221.

It is not a de Polignac number, because 12270717 - 2⁴ = 12270701 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12270737) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 70843 + ... + 71015.

It is an arithmetic number, because the mean of its divisors is an integer number (595080).

Almost surely, 2^12270717 is an apocalyptic number.

It is an amenable number.

12270717 is a deficient number, since it is larger than the sum of its proper divisors (6771843).

12270717 is a wasteful number, since it uses less digits than its factorization.

12270717 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290 (or 284 counting only the distinct ones).

The product of its (nonzero) digits is 1372, while the sum is 27.

The square root of 12270717 is about 3502.9583211908. The cubic root of 12270717 is about 230.6516929908.

Adding to 12270717 its reverse (71707221), we get a palindrome (83977938).

The spelling of 12270717 in words is "twelve million, two hundred seventy thousand, seven hundred seventeen".