106442447 has 4 divisors (see below), whose sum is σ = 107208360. Its totient is φ = 105676536.

The previous prime is 106442443. The next prime is 106442473. The reversal of 106442447 is 744244601.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 744244601 = 487 ⋅1528223.

It is a cyclic number.

It is not a de Polignac number, because 106442447 - 2² = 106442443 is a prime.

It is a super-2 number, since 2×106442447² = 22659989046695618, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106442443) 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, 382748 + ... + 383025.

It is an arithmetic number, because the mean of its divisors is an integer number (26802090).

Almost surely, 2^106442447 is an apocalyptic number.

106442447 is a deficient number, since it is larger than the sum of its proper divisors (765913).

106442447 is an equidigital number, since it uses as much as digits as its factorization.

106442447 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 765912.

The product of its (nonzero) digits is 21504, while the sum is 32.

The square root of 106442447 is about 10317.0948914896. The cubic root of 106442447 is about 473.9199052237.

The spelling of 106442447 in words is "one hundred six million, four hundred forty-two thousand, four hundred forty-seven".