873185772 has 12 divisors (see below), whose sum is σ = 2037433496. Its totient is φ = 291061920.

The previous prime is 873185749. The next prime is 873185779. The reversal of 873185772 is 277581378.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (873185779) 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, 36382729 + ... + 36382752.

Almost surely, 2^873185772 is an apocalyptic number.

It is an amenable number.

873185772 is an abundant number, since it is smaller than the sum of its proper divisors (1164247724).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

873185772 is a wasteful number, since it uses less digits than its factorization.

873185772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72765488 (or 72765486 counting only the distinct ones).

The product of its digits is 658560, while the sum is 48.

The square root of 873185772 is about 29549.7169529591. The cubic root of 873185772 is about 955.8040876418.

The spelling of 873185772 in words is "eight hundred seventy-three million, one hundred eighty-five thousand, seven hundred seventy-two".