1223471 has 2 divisors, whose sum is σ = 1223472. Its totient is φ = 1223470.

The previous prime is 1223459. The next prime is 1223489. The reversal of 1223471 is 1743221.

It is a weak prime.

It is an emirp because it is prime and its reverse (1743221) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1223471 is a prime.

It is a super-3 number, since 3×1223471³ = 5494172538348348333, which contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1223491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 611735 + 611736.

It is an arithmetic number, because the mean of its divisors is an integer number (611736).

2^1223471 is an apocalyptic number.

1223471 is a deficient number, since it is larger than the sum of its proper divisors (1).

1223471 is an equidigital number, since it uses as much as digits as its factorization.

1223471 is an evil number, because the sum of its binary digits is even.

The product of its digits is 336, while the sum is 20.

The square root of 1223471 is about 1106.1062335960. The cubic root of 1223471 is about 106.9542122198.

Adding to 1223471 its reverse (1743221), we get a palindrome (2966692).

The spelling of 1223471 in words is "one million, two hundred twenty-three thousand, four hundred seventy-one".