1427247 has 8 divisors (see below), whose sum is σ = 2114480. Its totient is φ = 951480.

The previous prime is 1427233. The next prime is 1427281. The reversal of 1427247 is 7427241.

It is a happy number.

It is not a de Polignac number, because 1427247 - 2⁸ = 1426991 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 52861 = 1427247 / (1 + 4 + 2 + 7 + 2 + 4 + 7).

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 1427247.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1427227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26404 + ... + 26457.

It is an arithmetic number, because the mean of its divisors is an integer number (264310).

2^1427247 is an apocalyptic number.

1427247 is a deficient number, since it is larger than the sum of its proper divisors (687233).

1427247 is an equidigital number, since it uses as much as digits as its factorization.

1427247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52870 (or 52864 counting only the distinct ones).

The product of its digits is 3136, while the sum is 27.

The square root of 1427247 is about 1194.6744326384. The cubic root of 1427247 is about 112.5899724693.

It can be divided in two parts, 14 and 27247, that added together give a triangular number (27261 = T₂₃₃).

The spelling of 1427247 in words is "one million, four hundred twenty-seven thousand, two hundred forty-seven".