82399366 has 32 divisors (see below), whose sum is σ = 145861632. Its totient is φ = 34179840.

The previous prime is 82399351. The next prime is 82399367. The reversal of 82399366 is 66399328.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82399367) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 63181 + ... + 64471.

It is an arithmetic number, because the mean of its divisors is an integer number (4558176).

Almost surely, 2^82399366 is an apocalyptic number.

82399366 is a deficient number, since it is larger than the sum of its proper divisors (63462266).

82399366 is a wasteful number, since it uses less digits than its factorization.

82399366 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1444.

The product of its digits is 419904, while the sum is 46.

The square root of 82399366 is about 9077.4096525385. The cubic root of 82399366 is about 435.1523067317.

The spelling of 82399366 in words is "eighty-two million, three hundred ninety-nine thousand, three hundred sixty-six".