1004263 has 8 divisors (see below), whose sum is σ = 1098608. Its totient is φ = 912384.

The previous prime is 1004233. The next prime is 1004273. The reversal of 1004263 is 3624001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1004263 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 (1004233) 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, 295 + ... + 1447.

It is an arithmetic number, because the mean of its divisors is an integer number (137326).

2^1004263 is an apocalyptic number.

1004263 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1004263 is a deficient number, since it is larger than the sum of its proper divisors (94345).

1004263 is a wasteful number, since it uses less digits than its factorization.

1004263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1233.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 1004263 is about 1002.1292331830. The cubic root of 1004263 is about 100.1418985528.

Adding to 1004263 its reverse (3624001), we get a palindrome (4628264).

The spelling of 1004263 in words is "one million, four thousand, two hundred sixty-three".