86069979 has 16 divisors (see below), whose sum is σ = 133056000. Its totient is φ = 54884808.

The previous prime is 86069959. The next prime is 86069983. The reversal of 86069979 is 97996068.

It is not a de Polignac number, because 86069979 - 2¹¹ = 86067931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86069909) 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 in 15 ways as a sum of consecutive naturals, for example, 68679 + ... + 69920.

It is an arithmetic number, because the mean of its divisors is an integer number (8316000).

Almost surely, 2^86069979 is an apocalyptic number.

86069979 is a deficient number, since it is larger than the sum of its proper divisors (46986021).

86069979 is a wasteful number, since it uses less digits than its factorization.

86069979 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138631 (or 138625 counting only the distinct ones).

The product of its (nonzero) digits is 1469664, while the sum is 54.

The square root of 86069979 is about 9277.3907430915. The cubic root of 86069979 is about 441.5201876820.

The spelling of 86069979 in words is "eighty-six million, sixty-nine thousand, nine hundred seventy-nine".