87669228 has 24 divisors (see below), whose sum is σ = 204756160. Its totient is φ = 29195280.

The previous prime is 87669199. The next prime is 87669229. The reversal of 87669228 is 82296678.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (87669229) 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, 12663 + ... + 18321.

Almost surely, 2^87669228 is an apocalyptic number.

It is an amenable number.

87669228 is an abundant number, since it is smaller than the sum of its proper divisors (117086932).

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

87669228 is a wasteful number, since it uses less digits than its factorization.

87669228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6957 (or 6955 counting only the distinct ones).

The product of its digits is 580608, while the sum is 48.

The square root of 87669228 is about 9363.1847146150. The cubic root of 87669228 is about 444.2380226888.

The spelling of 87669228 in words is "eighty-seven million, six hundred sixty-nine thousand, two hundred twenty-eight".