6891030106 has 4 divisors (see below), whose sum is σ = 10336545162. Its totient is φ = 3445515052.

The previous prime is 6891030103. The next prime is 6891030119. The reversal of 6891030106 is 6010301986.

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

It can be written as a sum of positive squares in only one way, i.e., 6846073081 + 44957025 = 82741^2 + 6705^2 .

It is not an unprimeable number, because it can be changed into a prime (6891030101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1722757525 + ... + 1722757528.

Almost surely, 2^6891030106 is an apocalyptic number.

6891030106 is a deficient number, since it is larger than the sum of its proper divisors (3445515056).

6891030106 is a wasteful number, since it uses less digits than its factorization.

6891030106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3445515055.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 6891030106 is about 83012.2286533737. The cubic root of 6891030106 is about 1902.9529433947.

The spelling of 6891030106 in words is "six billion, eight hundred ninety-one million, thirty thousand, one hundred six".