106978605 has 16 divisors (see below), whose sum is σ = 171803904. Its totient is φ = 56842560.

The previous prime is 106978591. The next prime is 106978609. The reversal of 106978605 is 506879601.

It is not a de Polignac number, because 106978605 - 2⁶ = 106978541 is a prime.

It is a super-2 number, since 2×106978605² = 22888843855492050, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (106978609) 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 in 15 ways as a sum of consecutive naturals, for example, 9094 + ... + 17223.

It is an arithmetic number, because the mean of its divisors is an integer number (10737744).

Almost surely, 2^106978605 is an apocalyptic number.

106978605 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106978605 is a deficient number, since it is larger than the sum of its proper divisors (64825299).

106978605 is a wasteful number, since it uses less digits than its factorization.

106978605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26596.

The product of its (nonzero) digits is 90720, while the sum is 42.

The square root of 106978605 is about 10343.0462147280. The cubic root of 106978605 is about 474.7142954086.

The spelling of 106978605 in words is "one hundred six million, nine hundred seventy-eight thousand, six hundred five".