1273427 has 4 divisors (see below), whose sum is σ = 1281696. Its totient is φ = 1265160.

The previous prime is 1273423. The next prime is 1273457. The reversal of 1273427 is 7243721.

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 1273427 - 2² = 1273423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1273396 and 1273405.

It is not an unprimeable number, because it can be changed into a prime (1273421) 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, 3899 + ... + 4212.

It is an arithmetic number, because the mean of its divisors is an integer number (320424).

2^1273427 is an apocalyptic number.

1273427 is a deficient number, since it is larger than the sum of its proper divisors (8269).

1273427 is an equidigital number, since it uses as much as digits as its factorization.

1273427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8268.

The product of its digits is 2352, while the sum is 26.

The square root of 1273427 is about 1128.4622279899. The cubic root of 1273427 is about 108.3905328442.

The spelling of 1273427 in words is "one million, two hundred seventy-three thousand, four hundred twenty-seven".