1423417 has 2 divisors, whose sum is σ = 1423418. Its totient is φ = 1423416.

The previous prime is 1423403. The next prime is 1423439. The reversal of 1423417 is 7143241.

It is an a-pointer prime, because the next prime (1423439) can be obtained adding 1423417 to its sum of digits (22).

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 881721 + 541696 = 939^2 + 736^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423417 is a prime.

It is a super-2 number, since 2×1423417² = 4052231911778, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1423717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711708 + 711709.

It is an arithmetic number, because the mean of its divisors is an integer number (711709).

2^1423417 is an apocalyptic number.

It is an amenable number.

1423417 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423417 is an equidigital number, since it uses as much as digits as its factorization.

1423417 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 672, while the sum is 22.

The square root of 1423417 is about 1193.0704086516. The cubic root of 1423417 is about 112.4891709741.

Adding to 1423417 its reverse (7143241), we get a palindrome (8566658).

The spelling of 1423417 in words is "one million, four hundred twenty-three thousand, four hundred seventeen".