86386879 has 2 divisors, whose sum is σ = 86386880. Its totient is φ = 86386878.

The previous prime is 86386849. The next prime is 86386889. The reversal of 86386879 is 97868368.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 86386879 - 2¹³ = 86378687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86386819) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43193439 + 43193440.

It is an arithmetic number, because the mean of its divisors is an integer number (43193440).

Almost surely, 2^86386879 is an apocalyptic number.

86386879 is a deficient number, since it is larger than the sum of its proper divisors (1).

86386879 is an equidigital number, since it uses as much as digits as its factorization.

86386879 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3483648, while the sum is 55.

The square root of 86386879 is about 9294.4542066762. The cubic root of 86386879 is about 442.0613999181.

The spelling of 86386879 in words is "eighty-six million, three hundred eighty-six thousand, eight hundred seventy-nine".