109749077 has 4 divisors (see below), whose sum is σ = 114520800. Its totient is φ = 104977356.

The previous prime is 109749071. The next prime is 109749109. The reversal of 109749077 is 770947901.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109749077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109749071) 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 in 3 ways as a sum of consecutive naturals, for example, 2385827 + ... + 2385872.

It is an arithmetic number, because the mean of its divisors is an integer number (28630200).

Almost surely, 2^109749077 is an apocalyptic number.

It is an amenable number.

109749077 is a deficient number, since it is larger than the sum of its proper divisors (4771723).

109749077 is an equidigital number, since it uses as much as digits as its factorization.

109749077 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4771722.

The product of its (nonzero) digits is 111132, while the sum is 44.

The square root of 109749077 is about 10476.1193673994. The cubic root of 109749077 is about 478.7773818323. Note that the first 3 decimals are identical.

The spelling of 109749077 in words is "one hundred nine million, seven hundred forty-nine thousand, seventy-seven".