87029888 has 64 divisors (see below), whose sum is σ = 191164320. Its totient is φ = 39137280.

The previous prime is 87029863. The next prime is 87029923. The reversal of 87029888 is 88892078.

It is a tau number, because it is divible by the number of its divisors (64).

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 158831 + ... + 159377.

Almost surely, 2^87029888 is an apocalyptic number.

87029888 is a gapful number since it is divisible by the number (88) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87029888, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (95582160).

87029888 is an abundant number, since it is smaller than the sum of its proper divisors (104134432).

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

87029888 is a wasteful number, since it uses less digits than its factorization.

87029888 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 685 (or 673 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 87029888 is about 9328.9810804825. The cubic root of 87029888 is about 443.1554977972.

The spelling of 87029888 in words is "eighty-seven million, twenty-nine thousand, eight hundred eighty-eight".