1427947 has 4 divisors (see below), whose sum is σ = 1438360. Its totient is φ = 1417536.

The previous prime is 1427927. The next prime is 1427957. The reversal of 1427947 is 7497241.

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 1427947 - 2¹¹ = 1425899 is a prime.

It is a Duffinian number.

1427947 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1427917) 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 3 ways as a sum of consecutive naturals, for example, 4998 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (359590).

2^1427947 is an apocalyptic number.

1427947 is a deficient number, since it is larger than the sum of its proper divisors (10413).

1427947 is a wasteful number, since it uses less digits than its factorization.

1427947 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10412.

The product of its digits is 14112, while the sum is 34.

The square root of 1427947 is about 1194.9673635711. The cubic root of 1427947 is about 112.6083762213.

The spelling of 1427947 in words is "one million, four hundred twenty-seven thousand, nine hundred forty-seven".