106831789 has 4 divisors (see below), whose sum is σ = 106909020. Its totient is φ = 106754560.

The previous prime is 106831771. The next prime is 106831819. The reversal of 106831789 is 987138601.

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 54022500 + 52809289 = 7350^2 + 7267^2 .

It is a cyclic number.

It is not a de Polignac number, because 106831789 - 2¹⁹ = 106307501 is a prime.

It is a super-2 number, since 2×106831789² = 22826062281881042, 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 (106831709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 36502 + ... + 39319.

It is an arithmetic number, because the mean of its divisors is an integer number (26727255).

Almost surely, 2^106831789 is an apocalyptic number.

It is an amenable number.

106831789 is a deficient number, since it is larger than the sum of its proper divisors (77231).

106831789 is an equidigital number, since it uses as much as digits as its factorization.

106831789 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77230.

The product of its (nonzero) digits is 72576, while the sum is 43.

The square root of 106831789 is about 10335.9464491647. The cubic root of 106831789 is about 474.4970321485.

The spelling of 106831789 in words is "one hundred six million, eight hundred thirty-one thousand, seven hundred eighty-nine".