87211029 has 16 divisors (see below), whose sum is σ = 122008064. Its totient is φ = 55339200.

The previous prime is 87211021. The next prime is 87211073. The reversal of 87211029 is 92011278.

It is not a de Polignac number, because 87211029 - 2³ = 87211021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 87210987 and 87211005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87211021) 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 in 15 ways as a sum of consecutive naturals, for example, 2014 + ... + 13359.

It is an arithmetic number, because the mean of its divisors is an integer number (7625504).

Almost surely, 2^87211029 is an apocalyptic number.

It is an amenable number.

87211029 is a deficient number, since it is larger than the sum of its proper divisors (34797035).

87211029 is a wasteful number, since it uses less digits than its factorization.

87211029 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15468.

The product of its (nonzero) digits is 2016, while the sum is 30.

The square root of 87211029 is about 9338.6845433391. The cubic root of 87211029 is about 443.4627409112.

The spelling of 87211029 in words is "eighty-seven million, two hundred eleven thousand, twenty-nine".