65087984 has 30 divisors (see below), whose sum is σ = 136560456. Its totient is φ = 30039360.

The previous prime is 65087929. The next prime is 65087987. The reversal of 65087984 is 48978056.

65087984 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65087984² = 8472891322368512, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (65087987) by changing a digit.

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 5 ways as a sum of consecutive naturals, for example, 9332 + ... + 14739.

Almost surely, 2^65087984 is an apocalyptic number.

It is an amenable number.

65087984 is an abundant number, since it is smaller than the sum of its proper divisors (71472472).

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

65087984 is a wasteful number, since it uses less digits than its factorization.

65087984 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24105 (or 24086 counting only the distinct ones).

The product of its (nonzero) digits is 483840, while the sum is 47.

The square root of 65087984 is about 8067.7124390995. The cubic root of 65087984 is about 402.2539092121.

The spelling of 65087984 in words is "sixty-five million, eighty-seven thousand, nine hundred eighty-four".