109902869 has 2 divisors, whose sum is σ = 109902870. Its totient is φ = 109902868.

The previous prime is 109902857. The next prime is 109902893. The reversal of 109902869 is 968209901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 66210769 + 43692100 = 8137^2 + 6610^2 .

It is a cyclic number.

It is not a de Polignac number, because 109902869 - 2⁴ = 109902853 is a prime.

It is a super-2 number, since 2×109902869² = 24157281228862322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109902829) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54951434 + 54951435.

It is an arithmetic number, because the mean of its divisors is an integer number (54951435).

Almost surely, 2^109902869 is an apocalyptic number.

It is an amenable number.

109902869 is a deficient number, since it is larger than the sum of its proper divisors (1).

109902869 is an equidigital number, since it uses as much as digits as its factorization.

109902869 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 44.

The square root of 109902869 is about 10483.4569203102. The cubic root of 109902869 is about 479.0009152662. Note that the first 3 decimals are identical.

The spelling of 109902869 in words is "one hundred nine million, nine hundred two thousand, eight hundred sixty-nine".