86878427 has 2 divisors, whose sum is σ = 86878428. Its totient is φ = 86878426.

The previous prime is 86878423. The next prime is 86878459. The reversal of 86878427 is 72487868.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86878427 - 2² = 86878423 is a prime.

It is a super-2 number, since 2×86878427² = 15095722155988658, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (86878423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43439213 + 43439214.

It is an arithmetic number, because the mean of its divisors is an integer number (43439214).

Almost surely, 2^86878427 is an apocalyptic number.

86878427 is a deficient number, since it is larger than the sum of its proper divisors (1).

86878427 is an equidigital number, since it uses as much as digits as its factorization.

86878427 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1204224, while the sum is 50.

The square root of 86878427 is about 9320.8597779389. The cubic root of 86878427 is about 442.8982691156.

The spelling of 86878427 in words is "eighty-six million, eight hundred seventy-eight thousand, four hundred twenty-seven".