87870480 has 40 divisors (see below), whose sum is σ = 272399232. Its totient is φ = 23432064.

The previous prime is 87870479. The next prime is 87870481. The reversal of 87870480 is 8407878.

It is an interprime number because it is at equal distance from previous prime (87870479) and next prime (87870481).

It is a tau number, because it is divible by the number of its divisors (40).

It is not an unprimeable number, because it can be changed into a prime (87870481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 182824 + ... + 183303.

Almost surely, 2^87870480 is an apocalyptic number.

87870480 is a gapful number since it is divisible by the number (80) formed by its first and last digit.

It is an amenable number.

87870480 is an abundant number, since it is smaller than the sum of its proper divisors (184528752).

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

87870480 is a wasteful number, since it uses less digits than its factorization.

87870480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 366143 (or 366137 counting only the distinct ones).

The product of its (nonzero) digits is 100352, while the sum is 42.

The square root of 87870480 is about 9373.9255384284. The cubic root of 87870480 is about 444.5776913441.

The spelling of 87870480 in words is "eighty-seven million, eight hundred seventy thousand, four hundred eighty".