106605643 has 8 divisors (see below), whose sum is σ = 110715968. Its totient is φ = 102569544.

The previous prime is 106605641. The next prime is 106605649. The reversal of 106605643 is 346506601.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 106605643 - 2¹ = 106605641 is a prime.

It is a super-2 number, since 2×106605643² = 22729526238886898, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106605641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15621 + ... + 21382.

It is an arithmetic number, because the mean of its divisors is an integer number (13839496).

Almost surely, 2^106605643 is an apocalyptic number.

106605643 is a deficient number, since it is larger than the sum of its proper divisors (4110325).

106605643 is an equidigital number, since it uses as much as digits as its factorization.

106605643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37113.

The product of its (nonzero) digits is 12960, while the sum is 31.

The square root of 106605643 is about 10325.0008716707. Note that the first 3 decimals coincide. The cubic root of 106605643 is about 474.1619839001.

The spelling of 106605643 in words is "one hundred six million, six hundred five thousand, six hundred forty-three".