87227192 has 32 divisors (see below), whose sum is σ = 178627680. Its totient is φ = 39688320.

The previous prime is 87227191. The next prime is 87227197. The reversal of 87227192 is 29172278.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87227191) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1478 + ... + 13290.

It is an arithmetic number, because the mean of its divisors is an integer number (5582115).

Almost surely, 2^87227192 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87227192, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (89313840).

87227192 is an abundant number, since it is smaller than the sum of its proper divisors (91400488).

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

87227192 is a wasteful number, since it uses less digits than its factorization.

87227192 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11903 (or 11899 counting only the distinct ones).

The product of its digits is 28224, while the sum is 38.

The square root of 87227192 is about 9339.5498820875. The cubic root of 87227192 is about 443.4901351740.

The spelling of 87227192 in words is "eighty-seven million, two hundred twenty-seven thousand, one hundred ninety-two".