86348239 has 2 divisors, whose sum is σ = 86348240. Its totient is φ = 86348238.

The previous prime is 86348221. The next prime is 86348243. The reversal of 86348239 is 93284368.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-86348239 is a prime.

It is a super-2 number, since 2×86348239² = 14912036756802242, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 86348195 and 86348204.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86348039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43174119 + 43174120.

It is an arithmetic number, because the mean of its divisors is an integer number (43174120).

Almost surely, 2^86348239 is an apocalyptic number.

86348239 is a deficient number, since it is larger than the sum of its proper divisors (1).

86348239 is an equidigital number, since it uses as much as digits as its factorization.

86348239 is an evil number, because the sum of its binary digits is even.

The product of its digits is 248832, while the sum is 43.

The square root of 86348239 is about 9292.3753152787. The cubic root of 86348239 is about 441.9954801856.

The spelling of 86348239 in words is "eighty-six million, three hundred forty-eight thousand, two hundred thirty-nine".