82087228 has 6 divisors (see below), whose sum is σ = 143652656. Its totient is φ = 41043612.

The previous prime is 82087223. The next prime is 82087267. The reversal of 82087228 is 82278028.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82087223) 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 as a sum of consecutive naturals, namely, 10260900 + ... + 10260907.

Almost surely, 2^82087228 is an apocalyptic number.

It is an amenable number.

82087228 is a deficient number, since it is larger than the sum of its proper divisors (61565428).

82087228 is a wasteful number, since it uses less digits than its factorization.

82087228 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20521811 (or 20521809 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 37.

The square root of 82087228 is about 9060.2002185382. The cubic root of 82087228 is about 434.6021429413.

The spelling of 82087228 in words is "eighty-two million, eighty-seven thousand, two hundred twenty-eight".