87226764 has 96 divisors (see below), whose sum is σ = 222082560. Its totient is φ = 26577408.

The previous prime is 87226759. The next prime is 87226771. The reversal of 87226764 is 46762278.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 980032 + ... + 980120.

It is an arithmetic number, because the mean of its divisors is an integer number (2313360).

Almost surely, 2^87226764 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 87226764, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111041280).

87226764 is an abundant number, since it is smaller than the sum of its proper divisors (134855796).

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

87226764 is a wasteful number, since it uses less digits than its factorization.

87226764 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 239 (or 237 counting only the distinct ones).

The product of its digits is 225792, while the sum is 42.

The square root of 87226764 is about 9339.5269687495. The cubic root of 87226764 is about 443.4894098112.

It can be divided in two parts, 87226 and 764, that added together give a triangular number (87990 = T₄₁₉).

The spelling of 87226764 in words is "eighty-seven million, two hundred twenty-six thousand, seven hundred sixty-four".