1384427 has 8 divisors (see below), whose sum is σ = 1523712. Its totient is φ = 1247400.

The previous prime is 1384403. The next prime is 1384433. The reversal of 1384427 is 7244831.

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

It is not a de Polignac number, because 1384427 - 2⁸ = 1384171 is a prime.

It is an Ulam number.

It is a d-powerful number, because it can be written as 1 + 3⁹ + 8³ + 4² + 4⁷ + 2¹⁹ + 7⁷ .

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1384427.

It is not an unprimeable number, because it can be changed into a prime (1384477) 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, 902 + ... + 1892.

It is an arithmetic number, because the mean of its divisors is an integer number (190464).

2^1384427 is an apocalyptic number.

1384427 is a deficient number, since it is larger than the sum of its proper divisors (139285).

1384427 is a wasteful number, since it uses less digits than its factorization.

1384427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1129.

The product of its digits is 5376, while the sum is 29.

The square root of 1384427 is about 1176.6167600370. The cubic root of 1384427 is about 111.4525527577.

The spelling of 1384427 in words is "one million, three hundred eighty-four thousand, four hundred twenty-seven".