106647789 has 4 divisors (see below), whose sum is σ = 142197056. Its totient is φ = 71098524.

The previous prime is 106647773. The next prime is 106647791. The reversal of 106647789 is 987746601.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 987746601 = 3 ⋅329248867.

It is not a de Polignac number, because 106647789 - 2⁴ = 106647773 is a prime.

It is a super-2 number, since 2×106647789² = 22747501797177042, 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 (106647799) 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, 17774629 + ... + 17774634.

It is an arithmetic number, because the mean of its divisors is an integer number (35549264).

Almost surely, 2^106647789 is an apocalyptic number.

It is an amenable number.

106647789 is a deficient number, since it is larger than the sum of its proper divisors (35549267).

106647789 is an equidigital number, since it uses as much as digits as its factorization.

106647789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35549266.

The product of its (nonzero) digits is 508032, while the sum is 48.

The square root of 106647789 is about 10327.0416383396. The cubic root of 106647789 is about 474.2244615121.

The spelling of 106647789 in words is "one hundred six million, six hundred forty-seven thousand, seven hundred eighty-nine".