86814399 has 16 divisors (see below), whose sum is σ = 132427008. Its totient is φ = 49556352.

The previous prime is 86814373. The next prime is 86814421. The reversal of 86814399 is 99341868.

It is not a de Polignac number, because 86814399 - 2⁹ = 86813887 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (86814319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28519 + ... + 31415.

It is an arithmetic number, because the mean of its divisors is an integer number (8276688).

Almost surely, 2^86814399 is an apocalyptic number.

86814399 is a deficient number, since it is larger than the sum of its proper divisors (45612609).

86814399 is a wasteful number, since it uses less digits than its factorization.

86814399 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4334.

The product of its digits is 373248, while the sum is 48.

The square root of 86814399 is about 9317.4244831928. The cubic root of 86814399 is about 442.7894394147.

The spelling of 86814399 in words is "eighty-six million, eight hundred fourteen thousand, three hundred ninety-nine".