1423747 has 4 divisors (see below), whose sum is σ = 1533280. Its totient is φ = 1314216.

The previous prime is 1423717. The next prime is 1423753. The reversal of 1423747 is 7473241.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7473241 = 89 ⋅83969.

It is a cyclic number.

It is not a de Polignac number, because 1423747 - 2¹⁵ = 1390979 is a prime.

It is a Duffinian number.

1423747 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (1423717) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54747 + ... + 54772.

It is an arithmetic number, because the mean of its divisors is an integer number (383320).

2^1423747 is an apocalyptic number.

1423747 is a deficient number, since it is larger than the sum of its proper divisors (109533).

1423747 is a wasteful number, since it uses less digits than its factorization.

1423747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109532.

The product of its digits is 4704, while the sum is 28.

The square root of 1423747 is about 1193.2086992643. The cubic root of 1423747 is about 112.4978633339.

Adding to 1423747 its reverse (7473241), we get a palindrome (8896988).

The spelling of 1423747 in words is "one million, four hundred twenty-three thousand, seven hundred forty-seven".