86240427 has 16 divisors (see below), whose sum is σ = 141523200. Its totient is φ = 45489312.

The previous prime is 86240417. The next prime is 86240437. The reversal of 86240427 is 72404268.

It is an interprime number because it is at equal distance from previous prime (86240417) and next prime (86240437).

It is not a de Polignac number, because 86240427 - 2¹⁹ = 85716139 is a prime.

It is a super-2 number, since 2×86240427² = 14874822498284658, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (86240417) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 157677 + ... + 158222.

It is an arithmetic number, because the mean of its divisors is an integer number (8845200).

Almost surely, 2^86240427 is an apocalyptic number.

86240427 is a deficient number, since it is larger than the sum of its proper divisors (55282773).

86240427 is a wasteful number, since it uses less digits than its factorization.

86240427 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 315922.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 86240427 is about 9286.5724032067. The cubic root of 86240427 is about 441.8114491676.

The spelling of 86240427 in words is "eighty-six million, two hundred forty thousand, four hundred twenty-seven".