106723489 has 2 divisors, whose sum is σ = 106723490. Its totient is φ = 106723488.

The previous prime is 106723481. The next prime is 106723499. The reversal of 106723489 is 984327601.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 82664464 + 24059025 = 9092^2 + 4905^2 .

It is a cyclic number.

It is not a de Polignac number, because 106723489 - 2³ = 106723481 is a prime.

It is a super-2 number, since 2×106723489² = 22779806208666242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (106723481) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 53361744 + 53361745.

It is an arithmetic number, because the mean of its divisors is an integer number (53361745).

Almost surely, 2^106723489 is an apocalyptic number.

It is an amenable number.

106723489 is a deficient number, since it is larger than the sum of its proper divisors (1).

106723489 is an equidigital number, since it uses as much as digits as its factorization.

106723489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72576, while the sum is 40.

The square root of 106723489 is about 10330.7061230102. The cubic root of 106723489 is about 474.3366385565.

It can be divided in two parts, 10672 and 3489, that added together give a square (14161 = 119²).

The spelling of 106723489 in words is "one hundred six million, seven hundred twenty-three thousand, four hundred eighty-nine".