1000009973 has 8 divisors (see below), whose sum is σ = 1003060800. Its totient is φ = 996965248.

The previous prime is 1000009961. The next prime is 1000009999. The reversal of 1000009973 is 3799000001.

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

It is a cyclic number.

It is not a de Polignac number, because 1000009973 - 2²⁸ = 731574517 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 (1000009573) 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 7 ways as a sum of consecutive naturals, for example, 778790 + ... + 780072.

It is an arithmetic number, because the mean of its divisors is an integer number (125382600).

Almost surely, 2^1000009973 is an apocalyptic number.

It is an amenable number.

1000009973 is a deficient number, since it is larger than the sum of its proper divisors (3050827).

1000009973 is an equidigital number, since it uses as much as digits as its factorization.

1000009973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3051.

The product of its (nonzero) digits is 1701, while the sum is 29.

The square root of 1000009973 is about 31622.9342882662. The cubic root of 1000009973 is about 1000.0033243223.

Adding to 1000009973 its reverse (3799000001), we get a palindrome (4799009974).

The spelling of 1000009973 in words is "one billion, nine thousand, nine hundred seventy-three".