1071427 has 8 divisors (see below), whose sum is σ = 1231200. Its totient is φ = 913344.

The previous prime is 1071419. The next prime is 1071439. The reversal of 1071427 is 7241701.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1071427 - 2³ = 1071419 is a prime.

It is a super-2 number, since 2×1071427² = 2295911632658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1071398 and 1071407.

It is not an unprimeable number, because it can be changed into a prime (1071407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1599 + ... + 2167.

It is an arithmetic number, because the mean of its divisors is an integer number (153900).

2^1071427 is an apocalyptic number.

1071427 is a deficient number, since it is larger than the sum of its proper divisors (159773).

1071427 is an equidigital number, since it uses as much as digits as its factorization.

1071427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 845.

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 1071427 is about 1035.0975799411. The cubic root of 1071427 is about 102.3263607831.

The spelling of 1071427 in words is "one million, seventy-one thousand, four hundred twenty-seven".