873689638 has 8 divisors (see below), whose sum is σ = 1367514288. Its totient is φ = 417851544.

The previous prime is 873689633. The next prime is 873689639. The reversal of 873689638 is 836986378.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873689633) 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 3 ways as a sum of consecutive naturals, for example, 9496581 + ... + 9496672.

It is an arithmetic number, because the mean of its divisors is an integer number (170939286).

Almost surely, 2^873689638 is an apocalyptic number.

873689638 is a deficient number, since it is larger than the sum of its proper divisors (493824650).

873689638 is a wasteful number, since it uses less digits than its factorization.

873689638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18993278.

The product of its digits is 10450944, while the sum is 58.

The square root of 873689638 is about 29558.2414564872. The cubic root of 873689638 is about 955.9878990724.

The spelling of 873689638 in words is "eight hundred seventy-three million, six hundred eighty-nine thousand, six hundred thirty-eight".