19926099 has 6 divisors (see below), whose sum is σ = 28782156. Its totient is φ = 13284060.

The previous prime is 19926097. The next prime is 19926113. The reversal of 19926099 is 99062991.

It is a happy number.

It is not a de Polignac number, because 19926099 - 2¹ = 19926097 is a prime.

It is not an unprimeable number, because it can be changed into a prime (19926097) 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, 1106997 + ... + 1107014.

It is an arithmetic number, because the mean of its divisors is an integer number (4797026).

Almost surely, 2^19926099 is an apocalyptic number.

19926099 is a deficient number, since it is larger than the sum of its proper divisors (8856057).

19926099 is a wasteful number, since it uses less digits than its factorization.

19926099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2214017 (or 2214014 counting only the distinct ones).

The product of its (nonzero) digits is 78732, while the sum is 45.

The square root of 19926099 is about 4463.8659254059. The cubic root of 19926099 is about 271.1070187292.

The spelling of 19926099 in words is "nineteen million, nine hundred twenty-six thousand, ninety-nine".