87840330 has 64 divisors (see below), whose sum is σ = 215550720. Its totient is φ = 22905344.

The previous prime is 87840307. The next prime is 87840341. The reversal of 87840330 is 3304878.

It is a super-3 number, since 3×87840330³ (a number of 25 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 87840291 and 87840300.

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 31 ways as a sum of consecutive naturals, for example, 445792 + ... + 445988.

It is an arithmetic number, because the mean of its divisors is an integer number (3367980).

Almost surely, 2^87840330 is an apocalyptic number.

87840330 is an abundant number, since it is smaller than the sum of its proper divisors (127710390).

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

87840330 is a wasteful number, since it uses less digits than its factorization.

87840330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463.

The product of its (nonzero) digits is 16128, while the sum is 33.

The square root of 87840330 is about 9372.3172161424. The cubic root of 87840330 is about 444.5268378958.

The spelling of 87840330 in words is "eighty-seven million, eight hundred forty thousand, three hundred thirty".