86393887 has 8 divisors (see below), whose sum is σ = 87943856. Its totient is φ = 84851712.

The previous prime is 86393861. The next prime is 86393897. The reversal of 86393887 is 78839368.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86393887 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86393897) 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, 23263 + ... + 26719.

It is an arithmetic number, because the mean of its divisors is an integer number (10992982).

Almost surely, 2^86393887 is an apocalyptic number.

86393887 is a deficient number, since it is larger than the sum of its proper divisors (1549969).

86393887 is a wasteful number, since it uses less digits than its factorization.

86393887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3897.

The product of its digits is 1741824, while the sum is 52.

The square root of 86393887 is about 9294.8311980369. The cubic root of 86393887 is about 442.0733534407.

The spelling of 86393887 in words is "eighty-six million, three hundred ninety-three thousand, eight hundred eighty-seven".