106921877 has 4 divisors (see below), whose sum is σ = 106958220. Its totient is φ = 106885536.

The previous prime is 106921831. The next prime is 106921879. The reversal of 106921877 is 778129601.

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 28793956 + 78127921 = 5366^2 + 8839^2 .

It is a cyclic number.

It is not a de Polignac number, because 106921877 - 2⁶ = 106921813 is a prime.

It is a super-2 number, since 2×106921877² = 22864575562406258, 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 (106921879) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13328 + ... + 19785.

It is an arithmetic number, because the mean of its divisors is an integer number (26739555).

Almost surely, 2^106921877 is an apocalyptic number.

It is an amenable number.

106921877 is a deficient number, since it is larger than the sum of its proper divisors (36343).

106921877 is an equidigital number, since it uses as much as digits as its factorization.

106921877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36342.

The product of its (nonzero) digits is 42336, while the sum is 41.

The square root of 106921877 is about 10340.3035255257. The cubic root of 106921877 is about 474.6303709828.

The spelling of 106921877 in words is "one hundred six million, nine hundred twenty-one thousand, eight hundred seventy-seven".