109928869 has 2 divisors, whose sum is σ = 109928870. Its totient is φ = 109928868.

The previous prime is 109928849. The next prime is 109928873. The reversal of 109928869 is 968829901.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98109025 + 11819844 = 9905^2 + 3438^2 .

It is a cyclic number.

It is not a de Polignac number, because 109928869 - 2¹³ = 109920677 is a prime.

It is a super-2 number, since 2×109928869² = 24168712479238322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109928809) 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 as a sum of consecutive naturals, namely, 54964434 + 54964435.

It is an arithmetic number, because the mean of its divisors is an integer number (54964435).

Almost surely, 2^109928869 is an apocalyptic number.

It is an amenable number.

109928869 is a deficient number, since it is larger than the sum of its proper divisors (1).

109928869 is an equidigital number, since it uses as much as digits as its factorization.

109928869 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 559872, while the sum is 52.

The square root of 109928869 is about 10484.6968959527. The cubic root of 109928869 is about 479.0386851077.

The spelling of 109928869 in words is "one hundred nine million, nine hundred twenty-eight thousand, eight hundred sixty-nine".