1073673891 has 24 divisors (see below), whose sum is σ = 1571270064. Its totient is φ = 706406400.

The previous prime is 1073673851. The next prime is 1073673919. The reversal of 1073673891 is 1983763701.

It is not a de Polignac number, because 1073673891 - 2⁹ = 1073673379 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1073673851) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 348540 + ... + 351606.

It is an arithmetic number, because the mean of its divisors is an integer number (65469586).

Almost surely, 2^1073673891 is an apocalyptic number.

1073673891 is a deficient number, since it is larger than the sum of its proper divisors (497596173).

1073673891 is a wasteful number, since it uses less digits than its factorization.

1073673891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3571 (or 3568 counting only the distinct ones).

The product of its (nonzero) digits is 190512, while the sum is 45.

The square root of 1073673891 is about 32766.9634082867. The cubic root of 1073673891 is about 1023.9784042254.

The spelling of 1073673891 in words is "one billion, seventy-three million, six hundred seventy-three thousand, eight hundred ninety-one".