87838081 has 8 divisors (see below), whose sum is σ = 91751040. Its totient is φ = 83932992.

The previous prime is 87838061. The next prime is 87838103. The reversal of 87838081 is 18083878.

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 87838081 - 2¹¹ = 87836033 is a prime.

It is a super-2 number, since 2×87838081² = 15431056947525122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (87838001) 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, 42060 + ... + 44098.

It is an arithmetic number, because the mean of its divisors is an integer number (11468880).

Almost surely, 2^87838081 is an apocalyptic number.

It is an amenable number.

87838081 is a deficient number, since it is larger than the sum of its proper divisors (3912959).

87838081 is a wasteful number, since it uses less digits than its factorization.

87838081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3935.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 87838081 is about 9372.1972343736. The cubic root of 87838081 is about 444.5230440827.

The spelling of 87838081 in words is "eighty-seven million, eight hundred thirty-eight thousand, eighty-one".