87219027 has 96 divisors (see below), whose sum is σ = 163897344. Its totient is φ = 43545600.

The previous prime is 87219023. The next prime is 87219029. The reversal of 87219027 is 72091278.

It is not a de Polignac number, because 87219027 - 2² = 87219023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87218982 and 87219000.

It is not an unprimeable number, because it can be changed into a prime (87219023) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1228402 + ... + 1228472.

It is an arithmetic number, because the mean of its divisors is an integer number (1707264).

Almost surely, 2^87219027 is an apocalyptic number.

87219027 is a deficient number, since it is larger than the sum of its proper divisors (76678317).

87219027 is a wasteful number, since it uses less digits than its factorization.

87219027 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169 (or 166 counting only the distinct ones).

The product of its (nonzero) digits is 14112, while the sum is 36.

The square root of 87219027 is about 9339.1127522908. The cubic root of 87219027 is about 443.4762969436.

The spelling of 87219027 in words is "eighty-seven million, two hundred nineteen thousand, twenty-seven".