109649471 has 4 divisors (see below), whose sum is σ = 110223744. Its totient is φ = 109075200.

The previous prime is 109649447. The next prime is 109649483. The reversal of 109649471 is 174946901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 174946901 = 23 ⋅7606387.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109649471 is a prime.

It is a super-3 number, since 3×109649471³ (a number of 25 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109649401) 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, 286850 + ... + 287231.

It is an arithmetic number, because the mean of its divisors is an integer number (27555936).

Almost surely, 2^109649471 is an apocalyptic number.

109649471 is a deficient number, since it is larger than the sum of its proper divisors (574273).

109649471 is an equidigital number, since it uses as much as digits as its factorization.

109649471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574272.

The product of its (nonzero) digits is 54432, while the sum is 41.

The square root of 109649471 is about 10471.3643332662. The cubic root of 109649471 is about 478.6324951639.

The spelling of 109649471 in words is "one hundred nine million, six hundred forty-nine thousand, four hundred seventy-one".