1002007073 has 4 divisors (see below), whose sum is σ = 1002869808. Its totient is φ = 1001144340.

The previous prime is 1002007051. The next prime is 1002007093. The reversal of 1002007073 is 3707002001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002007073 is a prime.

It is a super-3 number, since 3×1002007073³ (a number of 28 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1002007003) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 429623 + ... + 431948.

It is an arithmetic number, because the mean of its divisors is an integer number (250717452).

Almost surely, 2^1002007073 is an apocalyptic number.

It is an amenable number.

1002007073 is a deficient number, since it is larger than the sum of its proper divisors (862735).

1002007073 is an equidigital number, since it uses as much as digits as its factorization.

1002007073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 862734.

The product of its (nonzero) digits is 294, while the sum is 20.

The square root of 1002007073 is about 31654.4953047746. The cubic root of 1002007073 is about 1000.6685772382.

Adding to 1002007073 its reverse (3707002001), we get a palindrome (4709009074).

The spelling of 1002007073 in words is "one billion, two million, seven thousand, seventy-three".