106667641 has 4 divisors (see below), whose sum is σ = 108680292. Its totient is φ = 104654992.

The previous prime is 106667623. The next prime is 106667651. The reversal of 106667641 is 146766601.

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 60902416 + 45765225 = 7804^2 + 6765^2 .

It is a cyclic number.

It is not a de Polignac number, because 106667641 - 2¹¹ = 106665593 is a prime.

It is a super-2 number, since 2×106667641² = 22755971273009762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 106667641.

It is not an unprimeable number, because it can be changed into a prime (106667611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1006246 + ... + 1006351.

It is an arithmetic number, because the mean of its divisors is an integer number (27170073).

Almost surely, 2^106667641 is an apocalyptic number.

It is an amenable number.

106667641 is a deficient number, since it is larger than the sum of its proper divisors (2012651).

106667641 is an equidigital number, since it uses as much as digits as its factorization.

106667641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2012650.

The product of its (nonzero) digits is 36288, while the sum is 37.

The square root of 106667641 is about 10328.0027594884. The cubic root of 106667641 is about 474.2538845942.

The spelling of 106667641 in words is "one hundred six million, six hundred sixty-seven thousand, six hundred forty-one".