86246381 has 4 divisors (see below), whose sum is σ = 92880732. Its totient is φ = 79612032.

The previous prime is 86246323. The next prime is 86246383. The reversal of 86246381 is 18364268.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 48177481 + 38068900 = 6941^2 + 6170^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86246381 is a prime.

It is a super-2 number, since 2×86246381² = 14876876471194322, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86246383) 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, 3317156 + ... + 3317181.

It is an arithmetic number, because the mean of its divisors is an integer number (23220183).

Almost surely, 2^86246381 is an apocalyptic number.

It is an amenable number.

86246381 is a deficient number, since it is larger than the sum of its proper divisors (6634351).

86246381 is a wasteful number, since it uses less digits than its factorization.

86246381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6634350.

The product of its digits is 55296, while the sum is 38.

The square root of 86246381 is about 9286.8929680491. The cubic root of 86246381 is about 441.8216164210.

The spelling of 86246381 in words is "eighty-six million, two hundred forty-six thousand, three hundred eighty-one".