1109685477 has 8 divisors (see below), whose sum is σ = 1513989664. Its totient is φ = 722585808.

The previous prime is 1109685461. The next prime is 1109685569. The reversal of 1109685477 is 7745869011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1109685477 - 2⁴ = 1109685461 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 (1109685407) 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 7 ways as a sum of consecutive naturals, for example, 4300978 + ... + 4301235.

It is an arithmetic number, because the mean of its divisors is an integer number (189248708).

Almost surely, 2^1109685477 is an apocalyptic number.

It is an amenable number.

1109685477 is a deficient number, since it is larger than the sum of its proper divisors (404304187).

1109685477 is an equidigital number, since it uses as much as digits as its factorization.

1109685477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8602259.

The product of its (nonzero) digits is 423360, while the sum is 48.

The square root of 1109685477 is about 33311.9419578025. The cubic root of 1109685477 is about 1035.3010013937.

The spelling of 1109685477 in words is "one billion, one hundred nine million, six hundred eighty-five thousand, four hundred seventy-seven".