86309955 has 40 divisors (see below), whose sum is σ = 155532432. Its totient is φ = 45979488.

The previous prime is 86309953. The next prime is 86309963. The reversal of 86309955 is 55990368.

86309955 is a `hidden beast` number, since 8 + 630 + 9 + 9 + 5 + 5 = 666.

It is not a de Polignac number, because 86309955 - 2¹ = 86309953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 86309955.

It is not an unprimeable number, because it can be changed into a prime (86309953) 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 39 ways as a sum of consecutive naturals, for example, 97977 + ... + 98853.

Almost surely, 2^86309955 is an apocalyptic number.

86309955 is a deficient number, since it is larger than the sum of its proper divisors (69222477).

86309955 is an frugal number, since it uses more digits than its factorization.

86309955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 909 (or 885 counting only the distinct ones).

The product of its (nonzero) digits is 291600, while the sum is 45.

The square root of 86309955 is about 9290.3151184446. The cubic root of 86309955 is about 441.9301483905.

The spelling of 86309955 in words is "eighty-six million, three hundred nine thousand, nine hundred fifty-five".