1068731 has 4 divisors (see below), whose sum is σ = 1125000. Its totient is φ = 1012464.

The previous prime is 1068721. The next prime is 1068751. The reversal of 1068731 is 1378601.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1068731 - 2¹⁰ = 1067707 is a prime.

It is a super-2 number, since 2×1068731² = 2284371900722, which contains 22 as substring.

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 1068731.

It is not an unprimeable number, because it can be changed into a prime (1068701) 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, 28106 + ... + 28143.

It is an arithmetic number, because the mean of its divisors is an integer number (281250).

2^1068731 is an apocalyptic number.

1068731 is a deficient number, since it is larger than the sum of its proper divisors (56269).

1068731 is an equidigital number, since it uses as much as digits as its factorization.

1068731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56268.

The product of its (nonzero) digits is 1008, while the sum is 26.

The square root of 1068731 is about 1033.7944670001. The cubic root of 1068731 is about 102.2404617649.

The spelling of 1068731 in words is "one million, sixty-eight thousand, seven hundred thirty-one".