820006102 has 8 divisors (see below), whose sum is σ = 1238987736. Its totient is φ = 407010192.

The previous prime is 820006093. The next prime is 820006111. The reversal of 820006102 is 201600028.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (820006093) and next prime (820006111).

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

It is a self number, because there is not a number n which added to its sum of digits gives 820006102.

It is a congruent number.

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, 1496088 + ... + 1496635.

It is an arithmetic number, because the mean of its divisors is an integer number (154873467).

Almost surely, 2^820006102 is an apocalyptic number.

820006102 is a deficient number, since it is larger than the sum of its proper divisors (418981634).

820006102 is a wasteful number, since it uses less digits than its factorization.

820006102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2992862.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 820006102 is about 28635.7486718961. The cubic root of 820006102 is about 935.9924840205.

The spelling of 820006102 in words is "eight hundred twenty million, six thousand, one hundred two".