873639047 has 8 divisors (see below), whose sum is σ = 887727120. Its totient is φ = 859662720.

The previous prime is 873639037. The next prime is 873639049. The reversal of 873639047 is 740936378.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 873639047 - 2¹⁰ = 873638023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 873638992 and 873639010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (873639049) 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 7 ways as a sum of consecutive naturals, for example, 12104 + ... + 43517.

It is an arithmetic number, because the mean of its divisors is an integer number (110965890).

Almost surely, 2^873639047 is an apocalyptic number.

873639047 is a deficient number, since it is larger than the sum of its proper divisors (14088073).

873639047 is a wasteful number, since it uses less digits than its factorization.

873639047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55873.

The product of its (nonzero) digits is 762048, while the sum is 47.

The square root of 873639047 is about 29557.3856590870. The cubic root of 873639047 is about 955.9694465560.

The spelling of 873639047 in words is "eight hundred seventy-three million, six hundred thirty-nine thousand, forty-seven".