1267423 has 4 divisors (see below), whose sum is σ = 1270728. Its totient is φ = 1264120.

The previous prime is 1267411. The next prime is 1267429. The reversal of 1267423 is 3247621.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1267423 - 2¹³ = 1259231 is a prime.

It is a super-2 number, since 2×1267423² = 3212722121858, which contains 22 as substring.

It is a Duffinian number.

It is a plaindrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1267429) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 988 + ... + 1873.

It is an arithmetic number, because the mean of its divisors is an integer number (317682).

2^1267423 is an apocalyptic number.

1267423 is a deficient number, since it is larger than the sum of its proper divisors (3305).

1267423 is an equidigital number, since it uses as much as digits as its factorization.

1267423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3304.

The product of its digits is 2016, while the sum is 25.

The square root of 1267423 is about 1125.7988274998. The cubic root of 1267423 is about 108.2199165426.

The spelling of 1267423 in words is "one million, two hundred sixty-seven thousand, four hundred twenty-three".