82229866 has 8 divisors (see below), whose sum is σ = 124245540. Its totient is φ = 40814688.

The previous prime is 82229863. The next prime is 82229869. The reversal of 82229866 is 66892228.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (82229863) and next prime (82229869).

It can be written as a sum of positive squares in 2 ways, for example, as 70812225 + 11417641 = 8415^2 + 3379^2 .

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

It is not an unprimeable number, because it can be changed into a prime (82229863) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 149781 + ... + 150328.

Almost surely, 2^82229866 is an apocalyptic number.

82229866 is a deficient number, since it is larger than the sum of its proper divisors (42015674).

82229866 is a wasteful number, since it uses less digits than its factorization.

82229866 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300248.

The product of its digits is 165888, while the sum is 43.

The square root of 82229866 is about 9068.0684823175. The cubic root of 82229866 is about 434.8537245443.

The spelling of 82229866 in words is "eighty-two million, two hundred twenty-nine thousand, eight hundred sixty-six".