1006346643 has 4 divisors (see below), whose sum is σ = 1341795528. Its totient is φ = 670897760.

The previous prime is 1006346639. The next prime is 1006346689. The reversal of 1006346643 is 3466436001.

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 1006346643 - 2² = 1006346639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1006346743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167724438 + ... + 167724443.

It is an arithmetic number, because the mean of its divisors is an integer number (335448882).

Almost surely, 2^1006346643 is an apocalyptic number.

1006346643 is a deficient number, since it is larger than the sum of its proper divisors (335448885).

1006346643 is an equidigital number, since it uses as much as digits as its factorization.

1006346643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335448884.

The product of its (nonzero) digits is 31104, while the sum is 33.

The square root of 1006346643 is about 31722.9671216297. The cubic root of 1006346643 is about 1002.1110878386. Note that the first 3 decimals are identical.

The spelling of 1006346643 in words is "one billion, six million, three hundred forty-six thousand, six hundred forty-three".