82999378 has 32 divisors (see below), whose sum is σ = 158163840. Its totient is φ = 31724160.

The previous prime is 82999349. The next prime is 82999379. The reversal of 82999378 is 87399928.

It is not an unprimeable number, because it can be changed into a prime (82999379) 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 15 ways as a sum of consecutive naturals, for example, 3078 + ... + 13246.

It is an arithmetic number, because the mean of its divisors is an integer number (4942620).

Almost surely, 2^82999378 is an apocalyptic number.

82999378 is a deficient number, since it is larger than the sum of its proper divisors (75164462).

82999378 is a wasteful number, since it uses less digits than its factorization.

82999378 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10242.

The product of its digits is 1959552, while the sum is 55.

The square root of 82999378 is about 9110.3994423955. The cubic root of 82999378 is about 436.2059775010.

The spelling of 82999378 in words is "eighty-two million, nine hundred ninety-nine thousand, three hundred seventy-eight".