86366381 has 4 divisors (see below), whose sum is σ = 90912000. Its totient is φ = 81820764.

The previous prime is 86366369. The next prime is 86366387. The reversal of 86366381 is 18366368.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 86366381 - 2¹⁸ = 86104237 is a prime.

It is a super-2 number, since 2×86366381² = 14918303534074322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86366387) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2272781 + ... + 2272818.

It is an arithmetic number, because the mean of its divisors is an integer number (22728000).

Almost surely, 2^86366381 is an apocalyptic number.

It is an amenable number.

86366381 is a deficient number, since it is larger than the sum of its proper divisors (4545619).

86366381 is a wasteful number, since it uses less digits than its factorization.

86366381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4545618.

The product of its digits is 124416, while the sum is 41.

The square root of 86366381 is about 9293.3514406806. The cubic root of 86366381 is about 442.0264328357.

The spelling of 86366381 in words is "eighty-six million, three hundred sixty-six thousand, three hundred eighty-one".