1000010643 has 16 divisors (see below), whose sum is σ = 1351499520. Its totient is φ = 657622944.

The previous prime is 1000010633. The next prime is 1000010659. The reversal of 1000010643 is 3460100001.

It is not a de Polignac number, because 1000010643 - 2⁵ = 1000010611 is a prime.

It is a super-2 number, since 2×1000010643² = 2000042572226546898, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1000010633) 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 15 ways as a sum of consecutive naturals, for example, 179778 + ... + 185256.

It is an arithmetic number, because the mean of its divisors is an integer number (84468720).

Almost surely, 2^1000010643 is an apocalyptic number.

1000010643 is a deficient number, since it is larger than the sum of its proper divisors (351488877).

1000010643 is an equidigital number, since it uses as much as digits as its factorization.

1000010643 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6298.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 1000010643 is about 31622.9448818417. The cubic root of 1000010643 is about 1000.0035476541.

Adding to 1000010643 its reverse (3460100001), we get a palindrome (4460110644).

The spelling of 1000010643 in words is "one billion, ten thousand, six hundred forty-three".