86399825 has 12 divisors (see below), whose sum is σ = 108140400. Its totient is φ = 68471760.

The previous prime is 86399813. The next prime is 86399827. The reversal of 86399825 is 52899368.

It is not a de Polignac number, because 86399825 - 2⁴ = 86399809 is a prime.

It is not an unprimeable number, because it can be changed into a prime (86399827) 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 11 ways as a sum of consecutive naturals, for example, 13475 + ... + 18824.

It is an arithmetic number, because the mean of its divisors is an integer number (9011700).

Almost surely, 2^86399825 is an apocalyptic number.

It is an amenable number.

86399825 is a deficient number, since it is larger than the sum of its proper divisors (21740575).

86399825 is a wasteful number, since it uses less digits than its factorization.

86399825 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32416 (or 32411 counting only the distinct ones).

The product of its digits is 933120, while the sum is 50.

The square root of 86399825 is about 9295.1506173918. The cubic root of 86399825 is about 442.0834813619.

The spelling of 86399825 in words is "eighty-six million, three hundred ninety-nine thousand, eight hundred twenty-five".