86399039 has 2 divisors, whose sum is σ = 86399040. Its totient is φ = 86399038.

The previous prime is 86399011. The next prime is 86399081. The reversal of 86399039 is 93099368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86399039 - 2¹⁶ = 86333503 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 86398984 and 86399002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86399239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43199519 + 43199520.

It is an arithmetic number, because the mean of its divisors is an integer number (43199520).

Almost surely, 2^86399039 is an apocalyptic number.

86399039 is a deficient number, since it is larger than the sum of its proper divisors (1).

86399039 is an equidigital number, since it uses as much as digits as its factorization.

86399039 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 314928, while the sum is 47.

The square root of 86399039 is about 9295.1083371847. The cubic root of 86399039 is about 442.0821407779.

The spelling of 86399039 in words is "eighty-six million, three hundred ninety-nine thousand, thirty-nine".