1040047 has 4 divisors (see below), whose sum is σ = 1065456. Its totient is φ = 1014640.

The previous prime is 1040029. The next prime is 1040051. The reversal of 1040047 is 7400401.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7400401 = 71 ⋅104231.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1040047 is a prime.

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 1040047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1040057) 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, 12643 + ... + 12724.

It is an arithmetic number, because the mean of its divisors is an integer number (266364).

2^1040047 is an apocalyptic number.

1040047 is a deficient number, since it is larger than the sum of its proper divisors (25409).

1040047 is an equidigital number, since it uses as much as digits as its factorization.

1040047 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25408.

The product of its (nonzero) digits is 112, while the sum is 16.

The square root of 1040047 is about 1019.8269461041. The cubic root of 1040047 is about 101.3174665927.

Adding to 1040047 its reverse (7400401), we get a palindrome (8440448).

The spelling of 1040047 in words is "one million, forty thousand, forty-seven".