106784881 has 4 divisors (see below), whose sum is σ = 122039872. Its totient is φ = 91529892.

The previous prime is 106784879. The next prime is 106784897. The reversal of 106784881 is 188487601.

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: 188487601 = 79 ⋅2385919.

It is a cyclic number.

It is not a de Polignac number, because 106784881 - 2¹ = 106784879 is a prime.

It is a super-2 number, since 2×106784881² = 22806021620368322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (106784851) 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, 7627485 + ... + 7627498.

It is an arithmetic number, because the mean of its divisors is an integer number (30509968).

Almost surely, 2^106784881 is an apocalyptic number.

It is an amenable number.

106784881 is a deficient number, since it is larger than the sum of its proper divisors (15254991).

106784881 is an equidigital number, since it uses as much as digits as its factorization.

106784881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15254990.

The product of its (nonzero) digits is 86016, while the sum is 43.

The square root of 106784881 is about 10333.6770319185. The cubic root of 106784881 is about 474.4275741546.

The spelling of 106784881 in words is "one hundred six million, seven hundred eighty-four thousand, eight hundred eighty-one".