1425847 has 4 divisors (see below), whose sum is σ = 1430416. Its totient is φ = 1421280.

The previous prime is 1425821. The next prime is 1425863. The reversal of 1425847 is 7485241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7485241 = 239 ⋅31319.

It is a cyclic number.

It is not a de Polignac number, because 1425847 - 2¹⁵ = 1393079 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1425877) 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, 1779 + ... + 2452.

It is an arithmetic number, because the mean of its divisors is an integer number (357604).

2^1425847 is an apocalyptic number.

1425847 is a deficient number, since it is larger than the sum of its proper divisors (4569).

1425847 is an equidigital number, since it uses as much as digits as its factorization.

1425847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4568.

The product of its digits is 8960, while the sum is 31.

The square root of 1425847 is about 1194.0883551898. The cubic root of 1425847 is about 112.5531469050.

The spelling of 1425847 in words is "one million, four hundred twenty-five thousand, eight hundred forty-seven".