106989706 has 4 divisors (see below), whose sum is σ = 160484562. Its totient is φ = 53494852.

The previous prime is 106989697. The next prime is 106989709. The reversal of 106989706 is 607989601.

106989706 = T₈₄₄₄ + T₈₄₄₅ + T₈₄₄₆.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 607989601 = 457 ⋅1330393.

It can be written as a sum of positive squares in only one way, i.e., 55279225 + 51710481 = 7435^2 + 7191^2 .

It is a super-2 number, since 2×106989706² = 22893594379932872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106989709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26747425 + ... + 26747428.

Almost surely, 2^106989706 is an apocalyptic number.

106989706 is the 8446-th centered triangular number.

106989706 is a deficient number, since it is larger than the sum of its proper divisors (53494856).

106989706 is an equidigital number, since it uses as much as digits as its factorization.

106989706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53494855.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 106989706 is about 10343.5828415496. The cubic root of 106989706 is about 474.7307149569.

The spelling of 106989706 in words is "one hundred six million, nine hundred eighty-nine thousand, seven hundred six".