109397806 has 16 divisors (see below), whose sum is σ = 187720416. Its totient is φ = 46839456.

The previous prime is 109397797. The next prime is 109397807. The reversal of 109397806 is 608793901.

It is a super-2 number, since 2×109397806² = 23935759915227272, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109397807) 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 7 ways as a sum of consecutive naturals, for example, 14160 + ... + 20476.

It is an arithmetic number, because the mean of its divisors is an integer number (11732526).

Almost surely, 2^109397806 is an apocalyptic number.

109397806 is a deficient number, since it is larger than the sum of its proper divisors (78322610).

109397806 is a wasteful number, since it uses less digits than its factorization.

109397806 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7563.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 109397806 is about 10459.3406101914. The cubic root of 109397806 is about 478.2660324753.

The spelling of 109397806 in words is "one hundred nine million, three hundred ninety-seven thousand, eight hundred six".