1383427 has 4 divisors (see below), whose sum is σ = 1443600. Its totient is φ = 1323256.

The previous prime is 1383401. The next prime is 1383433. The reversal of 1383427 is 7243831.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7243831 = 7 ⋅1034833.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1383427 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 11.

It is a junction number, because it is equal to n+sod(n) for n = 1383395 and 1383404.

It is not an unprimeable number, because it can be changed into a prime (1383497) 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, 30052 + ... + 30097.

It is an arithmetic number, because the mean of its divisors is an integer number (360900).

2^1383427 is an apocalyptic number.

1383427 is a deficient number, since it is larger than the sum of its proper divisors (60173).

1383427 is an equidigital number, since it uses as much as digits as its factorization.

1383427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60172.

The product of its digits is 4032, while the sum is 28.

The square root of 1383427 is about 1176.1917360703. The cubic root of 1383427 is about 111.4257114729.

It can be divided in two parts, 13834 and 27, that added together give a triangular number (13861 = T₁₆₆).

The spelling of 1383427 in words is "one million, three hundred eighty-three thousand, four hundred twenty-seven".