100706861 has 4 divisors (see below), whose sum is σ = 106630812. Its totient is φ = 94782912.

The previous prime is 100706849. The next prime is 100706863. The reversal of 100706861 is 168607001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 51566761 + 49140100 = 7181^2 + 7010^2 .

It is a cyclic number.

It is not a de Polignac number, because 100706861 - 2¹⁸ = 100444717 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100706863) 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, 2961950 + ... + 2961983.

It is an arithmetic number, because the mean of its divisors is an integer number (26657703).

Almost surely, 2^100706861 is an apocalyptic number.

It is an amenable number.

100706861 is a deficient number, since it is larger than the sum of its proper divisors (5923951).

100706861 is an equidigital number, since it uses as much as digits as its factorization.

100706861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5923950.

The product of its (nonzero) digits is 2016, while the sum is 29.

The square root of 100706861 is about 10035.2808132110. The cubic root of 100706861 is about 465.2499692732.

The spelling of 100706861 in words is "one hundred million, seven hundred six thousand, eight hundred sixty-one".