109671 has 8 divisors (see below), whose sum is σ = 147840. Its totient is φ = 72312.

The previous prime is 109663. The next prime is 109673. The reversal of 109671 is 176901.

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

It is not a de Polignac number, because 109671 - 2³ = 109663 is a prime.

It is a nialpdrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109673) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 286 + ... + 548.

It is an arithmetic number, because the mean of its divisors is an integer number (18480).

2¹⁰⁹⁶⁷¹ is an apocalyptic number.

109671 is a deficient number, since it is larger than the sum of its proper divisors (38169).

109671 is a wasteful number, since it uses less digits than its factorization.

109671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 405.

The product of its (nonzero) digits is 378, while the sum is 24.

The square root of 109671 is about 331.1661214557. The cubic root of 109671 is about 47.8663818631.

It can be divided in two parts, 109 and 671, that added together give a triangular number (780 = T₃₉).

The spelling of 109671 in words is "one hundred nine thousand, six hundred seventy-one".