82321668 has 72 divisors (see below), whose sum is σ = 244485696. Its totient is φ = 23025600.

The previous prime is 82321663. The next prime is 82321693. The reversal of 82321668 is 86612328.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (82321663) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2848 + ... + 13143.

Almost surely, 2^82321668 is an apocalyptic number.

It is an amenable number.

82321668 is an abundant number, since it is smaller than the sum of its proper divisors (162164028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

82321668 is a wasteful number, since it uses less digits than its factorization.

82321668 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16025 (or 16020 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 82321668 is about 9073.1288980153. The cubic root of 82321668 is about 435.0154889451.

The spelling of 82321668 in words is "eighty-two million, three hundred twenty-one thousand, six hundred sixty-eight".