109906623 has 6 divisors (see below), whose sum is σ = 158754024. Its totient is φ = 73271076.

The previous prime is 109906619. The next prime is 109906637. The reversal of 109906623 is 326609901.

It is not a de Polignac number, because 109906623 - 2² = 109906619 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109906663) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6105915 + ... + 6105932.

It is an arithmetic number, because the mean of its divisors is an integer number (26459004).

Almost surely, 2^109906623 is an apocalyptic number.

109906623 is a deficient number, since it is larger than the sum of its proper divisors (48847401).

109906623 is a wasteful number, since it uses less digits than its factorization.

109906623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211853 (or 12211850 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The square root of 109906623 is about 10483.6359627755. The cubic root of 109906623 is about 479.0063690182.

The spelling of 109906623 in words is "one hundred nine million, nine hundred six thousand, six hundred twenty-three".