86342939 has 2 divisors, whose sum is σ = 86342940. Its totient is φ = 86342938.

The previous prime is 86342929. The next prime is 86342951. The reversal of 86342939 is 93924368.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86342939 - 2⁴ = 86342923 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 86342939.

It is not a weakly prime, because it can be changed into another prime (86342909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43171469 + 43171470.

It is an arithmetic number, because the mean of its divisors is an integer number (43171470).

Almost surely, 2^86342939 is an apocalyptic number.

86342939 is a deficient number, since it is larger than the sum of its proper divisors (1).

86342939 is an equidigital number, since it uses as much as digits as its factorization.

86342939 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 279936, while the sum is 44.

The square root of 86342939 is about 9292.0901308586. The cubic root of 86342939 is about 441.9864368667.

The spelling of 86342939 in words is "eighty-six million, three hundred forty-two thousand, nine hundred thirty-nine".