86347281 has 8 divisors (see below), whose sum is σ = 115245504. Its totient is φ = 57506960.

The previous prime is 86347277. The next prime is 86347291. The reversal of 86347281 is 18274368.

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 86347281 - 2² = 86347277 is a prime.

It is a super-2 number, since 2×86347281² = 14911705872185922, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86347201) 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, 10866 + ... + 17051.

It is an arithmetic number, because the mean of its divisors is an integer number (14405688).

Almost surely, 2^86347281 is an apocalyptic number.

It is an amenable number.

86347281 is a deficient number, since it is larger than the sum of its proper divisors (28898223).

86347281 is a wasteful number, since it uses less digits than its factorization.

86347281 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28951.

The product of its digits is 64512, while the sum is 39.

The square root of 86347281 is about 9292.3237674976. The cubic root of 86347281 is about 441.9938455904.

The spelling of 86347281 in words is "eighty-six million, three hundred forty-seven thousand, two hundred eighty-one".