83378266 has 8 divisors (see below), whose sum is σ = 130505184. Its totient is φ = 39876540.

The previous prime is 83378237. The next prime is 83378303. The reversal of 83378266 is 66287338.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 906240 + ... + 906331.

It is an arithmetic number, because the mean of its divisors is an integer number (16313148).

Almost surely, 2^83378266 is an apocalyptic number.

83378266 is a deficient number, since it is larger than the sum of its proper divisors (47126918).

83378266 is a wasteful number, since it uses less digits than its factorization.

83378266 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1812596.

The product of its digits is 290304, while the sum is 43.

The square root of 83378266 is about 9131.1700236060. The cubic root of 83378266 is about 436.8687228623.

The spelling of 83378266 in words is "eighty-three million, three hundred seventy-eight thousand, two hundred sixty-six".