12422727 has 20 divisors (see below), whose sum is σ = 18750160. Its totient is φ = 8195904.

The previous prime is 12422687. The next prime is 12422747. The reversal of 12422727 is 72722421.

It is not a de Polignac number, because 12422727 - 2⁸ = 12422471 is a prime.

It is a super-2 number, since 2×12422727² = 308648292233058, which contains 22 as substring.

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

It is a Duffinian number.

12422727 is a modest number, since divided by 2727 gives 1242 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 12422727.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12422747) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 7599 + ... + 9087.

It is an arithmetic number, because the mean of its divisors is an integer number (937508).

Almost surely, 2^12422727 is an apocalyptic number.

12422727 is a deficient number, since it is larger than the sum of its proper divisors (6327433).

12422727 is a wasteful number, since it uses less digits than its factorization.

12422727 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1604 (or 1595 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 12422727 is about 3524.5889121995. The cubic root of 12422727 is about 231.6002268515.

It can be divided in two parts, 1242 and 2727, that added together give a square (3969 = 63²).

The spelling of 12422727 in words is "twelve million, four hundred twenty-two thousand, seven hundred twenty-seven".