2861000806 has 8 divisors (see below), whose sum is σ = 4351945104. Its totient is φ = 1410352440.

The previous prime is 2861000803. The next prime is 2861000809. The reversal of 2861000806 is 6080001682.

It is an interprime number because it is at equal distance from previous prime (2861000803) and next prime (2861000809).

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

It is a super-2 number, since 2×2861000806² = 16370651223865299272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2861000803) 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, 10073805 + ... + 10074088.

It is an arithmetic number, because the mean of its divisors is an integer number (543993138).

Almost surely, 2^2861000806 is an apocalyptic number.

2861000806 is a deficient number, since it is larger than the sum of its proper divisors (1490944298).

2861000806 is a wasteful number, since it uses less digits than its factorization.

2861000806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20147966.

The product of its (nonzero) digits is 4608, while the sum is 31.

The square root of 2861000806 is about 53488.3240156205. The cubic root of 2861000806 is about 1419.6218006887.

The spelling of 2861000806 in words is "two billion, eight hundred sixty-one million, eight hundred six", and thus it is an aban number.