1008840073 has 4 divisors (see below), whose sum is σ = 1009042948. Its totient is φ = 1008637200.

The previous prime is 1008840067. The next prime is 1008840193. The reversal of 1008840073 is 3700488001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3700488001 = 7 ⋅528641143.

It can be written as a sum of positive squares in 2 ways, for example, as 341806144 + 667033929 = 18488^2 + 25827^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1008840073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1008840043) 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, 93786 + ... + 103987.

It is an arithmetic number, because the mean of its divisors is an integer number (252260737).

Almost surely, 2^1008840073 is an apocalyptic number.

It is an amenable number.

1008840073 is a deficient number, since it is larger than the sum of its proper divisors (202875).

1008840073 is an equidigital number, since it uses as much as digits as its factorization.

1008840073 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202874.

The product of its (nonzero) digits is 5376, while the sum is 31.

The square root of 1008840073 is about 31762.2428836504. The cubic root of 1008840073 is about 1002.9380504059.

The spelling of 1008840073 in words is "one billion, eight million, eight hundred forty thousand, seventy-three".