109828469 has 4 divisors (see below), whose sum is σ = 112796844. Its totient is φ = 106860096.

The previous prime is 109828451. The next prime is 109828471. The reversal of 109828469 is 964828901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 964828901 = 223 ⋅4326587.

It can be written as a sum of positive squares in 2 ways, for example, as 81685444 + 28143025 = 9038^2 + 5305^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109828469 is a prime.

It is a super-2 number, since 2×109828469² = 24124585205767922, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109828489) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1484132 + ... + 1484205.

It is an arithmetic number, because the mean of its divisors is an integer number (28199211).

Almost surely, 2^109828469 is an apocalyptic number.

It is an amenable number.

109828469 is a deficient number, since it is larger than the sum of its proper divisors (2968375).

109828469 is an equidigital number, since it uses as much as digits as its factorization.

109828469 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2968374.

The product of its (nonzero) digits is 248832, while the sum is 47.

The square root of 109828469 is about 10479.9078717325. The cubic root of 109828469 is about 478.8928024899.

The spelling of 109828469 in words is "one hundred nine million, eight hundred twenty-eight thousand, four hundred sixty-nine".