87143480 has 48 divisors (see below), whose sum is σ = 202691160. Its totient is φ = 33718080.

The previous prime is 87143477. The next prime is 87143533. The reversal of 87143480 is 8434178.

It is a happy number.

It is a super-2 number, since 2×87143480² = 15187972213020800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 87143480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37307 + ... + 39573.

Almost surely, 2^87143480 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 87143480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101345580).

87143480 is an abundant number, since it is smaller than the sum of its proper divisors (115547680).

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

87143480 is a wasteful number, since it uses less digits than its factorization.

87143480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2340 (or 2305 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 87143480 is about 9335.0672198972. The cubic root of 87143480 is about 443.3482171623.

The spelling of 87143480 in words is "eighty-seven million, one hundred forty-three thousand, four hundred eighty".