86780339 has 2 divisors, whose sum is σ = 86780340. Its totient is φ = 86780338.

The previous prime is 86780299. The next prime is 86780399. The reversal of 86780339 is 93308768.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 86780339 - 2¹² = 86776243 is a 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 86780339.

It is not a weakly prime, because it can be changed into another prime (86780399) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43390169 + 43390170.

It is an arithmetic number, because the mean of its divisors is an integer number (43390170).

Almost surely, 2^86780339 is an apocalyptic number.

86780339 is a deficient number, since it is larger than the sum of its proper divisors (1).

86780339 is an equidigital number, since it uses as much as digits as its factorization.

86780339 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 44.

The square root of 86780339 is about 9315.5965455788. The cubic root of 86780339 is about 442.7315251317.

The spelling of 86780339 in words is "eighty-six million, seven hundred eighty thousand, three hundred thirty-nine".