106689615 has 16 divisors (see below), whose sum is σ = 171028608. Its totient is φ = 56792736.

The previous prime is 106689613. The next prime is 106689647. The reversal of 106689615 is 516986601.

It is a happy number.

It is not a de Polignac number, because 106689615 - 2¹ = 106689613 is a prime.

It is a super-2 number, since 2×106689615² = 22765347897696450, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106689613) 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 15 ways as a sum of consecutive naturals, for example, 1704 + ... + 14706.

It is an arithmetic number, because the mean of its divisors is an integer number (10689288).

Almost surely, 2^106689615 is an apocalyptic number.

106689615 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

106689615 is a deficient number, since it is larger than the sum of its proper divisors (64338993).

106689615 is a wasteful number, since it uses less digits than its factorization.

106689615 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13558.

The product of its (nonzero) digits is 77760, while the sum is 42.

The square root of 106689615 is about 10329.0665115489. The cubic root of 106689615 is about 474.2864484821.

The spelling of 106689615 in words is "one hundred six million, six hundred eighty-nine thousand, six hundred fifteen".