83278195 has 48 divisors (see below), whose sum is σ = 136630368. Its totient is φ = 47900160.

The previous prime is 83278171. The next prime is 83278199. The reversal of 83278195 is 59187238.

It is not a de Polignac number, because 83278195 - 2⁵ = 83278163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (83278199) 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 47 ways as a sum of consecutive naturals, for example, 33847 + ... + 36223.

It is an arithmetic number, because the mean of its divisors is an integer number (2846466).

Almost surely, 2^83278195 is an apocalyptic number.

83278195 is a deficient number, since it is larger than the sum of its proper divisors (53352173).

83278195 is a wasteful number, since it uses less digits than its factorization.

83278195 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2420 (or 2413 counting only the distinct ones).

The product of its digits is 120960, while the sum is 43.

The square root of 83278195 is about 9125.6887411307. The cubic root of 83278195 is about 436.6938755715.

The spelling of 83278195 in words is "eighty-three million, two hundred seventy-eight thousand, one hundred ninety-five".