82621002 has 8 divisors (see below), whose sum is σ = 165242016. Its totient is φ = 27540332.

The previous prime is 82620997. The next prime is 82621039. The reversal of 82621002 is 20012628.

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

82621002 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 82621002.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6885078 + ... + 6885089.

It is an arithmetic number, because the mean of its divisors is an integer number (20655252).

Almost surely, 2^82621002 is an apocalyptic number.

82621002 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

82621002 is a wasteful number, since it uses less digits than its factorization.

82621002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13770172.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 82621002 is about 9089.6095625720. The cubic root of 82621002 is about 435.5421118078.

The spelling of 82621002 in words is "eighty-two million, six hundred twenty-one thousand, two".