87983550 has 48 divisors (see below), whose sum is σ = 242447280. Its totient is φ = 23461920.

The previous prime is 87983543. The next prime is 87983563. The reversal of 87983550 is 5538978.

87983550 is a `hidden beast` number, since 8 + 7 + 98 + 3 + 550 = 666.

It is a super-2 number, since 2×87983550² = 15482210141205000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 87983496 and 87983505.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 31237 + ... + 33936.

It is an arithmetic number, because the mean of its divisors is an integer number (5050985).

Almost surely, 2^87983550 is an apocalyptic number.

87983550 is an abundant number, since it is smaller than the sum of its proper divisors (154463730).

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

87983550 is a wasteful number, since it uses less digits than its factorization.

87983550 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65194 (or 65183 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 87983550 is about 9379.9546907221. The cubic root of 87983550 is about 444.7683008773.

The spelling of 87983550 in words is "eighty-seven million, nine hundred eighty-three thousand, five hundred fifty".