86618427 has 12 divisors (see below), whose sum is σ = 134347176. Its totient is φ = 49496160.

The previous prime is 86618423. The next prime is 86618453. The reversal of 86618427 is 72481668.

It is not a de Polignac number, because 86618427 - 2² = 86618423 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86618423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 294474 + ... + 294767.

It is an arithmetic number, because the mean of its divisors is an integer number (11195598).

Almost surely, 2^86618427 is an apocalyptic number.

86618427 is a deficient number, since it is larger than the sum of its proper divisors (47728749).

86618427 is a wasteful number, since it uses less digits than its factorization.

86618427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 589258 (or 589251 counting only the distinct ones).

The product of its digits is 129024, while the sum is 42.

The square root of 86618427 is about 9306.9021161716. The cubic root of 86618427 is about 442.4560089052.

The spelling of 86618427 in words is "eighty-six million, six hundred eighteen thousand, four hundred twenty-seven".