109977 has 8 divisors (see below), whose sum is σ = 167616. Its totient is φ = 62832.

The previous prime is 109961. The next prime is 109987. The reversal of 109977 is 779901.

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

It is not a de Polignac number, because 109977 - 2⁴ = 109961 is a prime.

It is a plaindrome in base 15.

It is not an unprimeable number, because it can be changed into a prime (109937) 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, 2598 + ... + 2639.

It is an arithmetic number, because the mean of its divisors is an integer number (20952).

2¹⁰⁹⁹⁷⁷ is an apocalyptic number.

It is an amenable number.

109977 is a deficient number, since it is larger than the sum of its proper divisors (57639).

109977 is an equidigital number, since it uses as much as digits as its factorization.

109977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5247.

The product of its (nonzero) digits is 3969, while the sum is 33.

The square root of 109977 is about 331.6278034182. The cubic root of 109977 is about 47.9108588634.

It can be divided in two parts, 1099 and 77, that added together give a triangular number (1176 = T₄₈).

The spelling of 109977 in words is "one hundred nine thousand, nine hundred seventy-seven".