106881784 has 8 divisors (see below), whose sum is σ = 200403360. Its totient is φ = 53440888.

The previous prime is 106881781. The next prime is 106881799. The reversal of 106881784 is 487188601.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×106881784² = 22847431502045312, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 106881784.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106881781) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6680104 + ... + 6680119.

It is an arithmetic number, because the mean of its divisors is an integer number (25050420).

Almost surely, 2^106881784 is an apocalyptic number.

It is an amenable number.

106881784 is a deficient number, since it is larger than the sum of its proper divisors (93521576).

106881784 is a wasteful number, since it uses less digits than its factorization.

106881784 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13360229 (or 13360225 counting only the distinct ones).

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

The square root of 106881784 is about 10338.3646675865. The cubic root of 106881784 is about 474.5710387707.

The spelling of 106881784 in words is "one hundred six million, eight hundred eighty-one thousand, seven hundred eighty-four".