109921606 has 16 divisors (see below), whose sum is σ = 166610304. Its totient is φ = 54388224.

The previous prime is 109921601. The next prime is 109921667. The reversal of 109921606 is 606129901.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109921601) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85440 + ... + 86716.

It is an arithmetic number, because the mean of its divisors is an integer number (10413144).

Almost surely, 2^109921606 is an apocalyptic number.

109921606 is a deficient number, since it is larger than the sum of its proper divisors (56688698).

109921606 is a wasteful number, since it uses less digits than its factorization.

109921606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1695.

The product of its (nonzero) digits is 5832, while the sum is 34.

The square root of 109921606 is about 10484.3505282874. The cubic root of 109921606 is about 479.0281348473.

The spelling of 109921606 in words is "one hundred nine million, nine hundred twenty-one thousand, six hundred six".