93687881 has 8 divisors (see below), whose sum is σ = 107616960. Its totient is φ = 79895088.

The previous prime is 93687877. The next prime is 93687883. The reversal of 93687881 is 18878639.

It is a happy number.

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

It is not a de Polignac number, because 93687881 - 2² = 93687877 is a prime.

It is a super-2 number, since 2×93687881² = 17554838092540322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (93687883) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32591 + ... + 35348.

It is an arithmetic number, because the mean of its divisors is an integer number (13452120).

Almost surely, 2^93687881 is an apocalyptic number.

It is an amenable number.

93687881 is a deficient number, since it is larger than the sum of its proper divisors (13929079).

93687881 is a wasteful number, since it uses less digits than its factorization.

93687881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68143.

The product of its digits is 580608, while the sum is 50.

The square root of 93687881 is about 9679.2500225999. The cubic root of 93687881 is about 454.1797902931.

The spelling of 93687881 in words is "ninety-three million, six hundred eighty-seven thousand, eight hundred eighty-one".