109849769 has 4 divisors (see below), whose sum is σ = 109946196. Its totient is φ = 109753344.

The previous prime is 109849759. The next prime is 109849787. The reversal of 109849769 is 967948901.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 97515625 + 12334144 = 9875^2 + 3512^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109849769 is a prime.

It is a super-2 number, since 2×109849769² = 24133943498706722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109849769.

It is not an unprimeable number, because it can be changed into a prime (109849759) 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, 46484 + ... + 48789.

It is an arithmetic number, because the mean of its divisors is an integer number (27486549).

Almost surely, 2^109849769 is an apocalyptic number.

It is an amenable number.

109849769 is a deficient number, since it is larger than the sum of its proper divisors (96427).

109849769 is an equidigital number, since it uses as much as digits as its factorization.

109849769 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96426.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 109849769 is about 10480.9240527732. The cubic root of 109849769 is about 478.9237591184.

The spelling of 109849769 in words is "one hundred nine million, eight hundred forty-nine thousand, seven hundred sixty-nine".