1024681 has 4 divisors (see below), whose sum is σ = 1171072. Its totient is φ = 878292.

The previous prime is 1024669. The next prime is 1024693. The reversal of 1024681 is 1864201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1864201 = 73 ⋅25537.

It is an interprime number because it is at equal distance from previous prime (1024669) and next prime (1024693).

It is a cyclic number.

It is not a de Polignac number, because 1024681 - 2¹¹ = 1022633 is a prime.

It is a super-2 number, since 2×1024681² = 2099942303522, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1024481) 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, 73185 + ... + 73198.

It is an arithmetic number, because the mean of its divisors is an integer number (292768).

2^1024681 is an apocalyptic number.

It is an amenable number.

1024681 is a deficient number, since it is larger than the sum of its proper divisors (146391).

1024681 is an equidigital number, since it uses as much as digits as its factorization.

1024681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 146390.

The product of its (nonzero) digits is 384, while the sum is 22.

The square root of 1024681 is about 1012.2652814357. The cubic root of 1024681 is about 100.8160229526.

Adding to 1024681 its reverse (1864201), we get a palindrome (2888882).

The spelling of 1024681 in words is "one million, twenty-four thousand, six hundred eighty-one".