83885155 has 8 divisors (see below), whose sum is σ = 100949472. Its totient is φ = 66916608.

The previous prime is 83885149. The next prime is 83885159. The reversal of 83885155 is 55158838.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 83885155 - 2³ = 83885147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (83885159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21999 + ... + 25528.

It is an arithmetic number, because the mean of its divisors is an integer number (12618684).

Almost surely, 2^83885155 is an apocalyptic number.

83885155 is a deficient number, since it is larger than the sum of its proper divisors (17064317).

83885155 is a wasteful number, since it uses less digits than its factorization.

83885155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47885.

The product of its digits is 192000, while the sum is 43.

The square root of 83885155 is about 9158.8839385593. The cubic root of 83885155 is about 437.7522333266.

The spelling of 83885155 in words is "eighty-three million, eight hundred eighty-five thousand, one hundred fifty-five".