87065481 has 8 divisors (see below), whose sum is σ = 116225280. Its totient is φ = 57974672.

The previous prime is 87065471. The next prime is 87065513. The reversal of 87065481 is 18456078.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 87065481 - 2¹⁹ = 86541193 is a prime.

It is a super-2 number, since 2×87065481² = 15160795963522722, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (87065401) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14226 + ... + 19403.

It is an arithmetic number, because the mean of its divisors is an integer number (14528160).

Almost surely, 2^87065481 is an apocalyptic number.

It is an amenable number.

87065481 is a deficient number, since it is larger than the sum of its proper divisors (29159799).

87065481 is a wasteful number, since it uses less digits than its factorization.

87065481 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34495.

The product of its (nonzero) digits is 53760, while the sum is 39.

The square root of 87065481 is about 9330.8885428988. Note that the first 3 decimals coincide. The cubic root of 87065481 is about 443.2159026543.

The spelling of 87065481 in words is "eighty-seven million, sixty-five thousand, four hundred eighty-one".