106388805 has 32 divisors (see below), whose sum is σ = 180845568. Its totient is φ = 53222400.

The previous prime is 106388797. The next prime is 106388827. The reversal of 106388805 is 508883601.

It is a happy number.

It is not a de Polignac number, because 106388805 - 2³ = 106388797 is a prime.

It is a super-2 number, since 2×106388805² = 22637155658656050, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 106860 + ... + 107850.

It is an arithmetic number, because the mean of its divisors is an integer number (5651424).

Almost surely, 2^106388805 is an apocalyptic number.

106388805 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

106388805 is a deficient number, since it is larger than the sum of its proper divisors (74456763).

106388805 is a wasteful number, since it uses less digits than its factorization.

106388805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1437.

The product of its (nonzero) digits is 46080, while the sum is 39.

The square root of 106388805 is about 10314.4948979579. The cubic root of 106388805 is about 473.8402807131.

The spelling of 106388805 in words is "one hundred six million, three hundred eighty-eight thousand, eight hundred five".