1000549973 has 8 divisors (see below), whose sum is σ = 1007245920. Its totient is φ = 993872880.

The previous prime is 1000549919. The next prime is 1000549981. The reversal of 1000549973 is 3799450001.

It is a happy number.

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 1000549973 - 2⁸ = 1000549717 is a prime.

It is a super-2 number, since 2×1000549973² = 2002200496940601458, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000549993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111083 + ... + 119751.

It is an arithmetic number, because the mean of its divisors is an integer number (125905740).

Almost surely, 2^1000549973 is an apocalyptic number.

It is an amenable number.

1000549973 is a deficient number, since it is larger than the sum of its proper divisors (6695947).

1000549973 is an equidigital number, since it uses as much as digits as its factorization.

1000549973 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9427.

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 1000549973 is about 31631.4712430516. The cubic root of 1000549973 is about 1000.1832907358.

Adding to 1000549973 its reverse (3799450001), we get a palindrome (4799999974).

The spelling of 1000549973 in words is "one billion, five hundred forty-nine thousand, nine hundred seventy-three".