873639494 has 48 divisors (see below), whose sum is σ = 1702356768. Its totient is φ = 327400704.

The previous prime is 873639493. The next prime is 873639497. The reversal of 873639494 is 494936378.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873639493) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59054 + ... + 72350.

It is an arithmetic number, because the mean of its divisors is an integer number (35465766).

Almost surely, 2^873639494 is an apocalyptic number.

873639494 is a deficient number, since it is larger than the sum of its proper divisors (828717274).

873639494 is a wasteful number, since it uses less digits than its factorization.

873639494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13357 (or 13338 counting only the distinct ones).

The product of its digits is 3919104, while the sum is 53.

The square root of 873639494 is about 29557.3932206479. The cubic root of 873639494 is about 955.9696095975.

The spelling of 873639494 in words is "eight hundred seventy-three million, six hundred thirty-nine thousand, four hundred ninety-four".