86788281 has 8 divisors (see below), whose sum is σ = 122524704. Its totient is φ = 54455360.

The previous prime is 86788279. The next prime is 86788291. The reversal of 86788281 is 18288768.

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 86788281 - 2¹ = 86788279 is a prime.

It is a super-2 number, since 2×86788281² = 15064411437869922, which contains 22 as substring.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 86788281.

It is not an unprimeable number, because it can be changed into a prime (86788201) 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, 850815 + ... + 850916.

It is an arithmetic number, because the mean of its divisors is an integer number (15315588).

Almost surely, 2^86788281 is an apocalyptic number.

It is an amenable number.

86788281 is a deficient number, since it is larger than the sum of its proper divisors (35736423).

86788281 is a wasteful number, since it uses less digits than its factorization.

86788281 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1701751.

The product of its digits is 344064, while the sum is 48.

The square root of 86788281 is about 9316.0228101911. The cubic root of 86788281 is about 442.7450307504.

The spelling of 86788281 in words is "eighty-six million, seven hundred eighty-eight thousand, two hundred eighty-one".