109407 has 4 divisors (see below), whose sum is σ = 145880. Its totient is φ = 72936.

The previous prime is 109397. The next prime is 109423. The reversal of 109407 is 704901.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 704901 = 3 ⋅234967.

It is not a de Polignac number, because 109407 - 2⁴ = 109391 is a prime.

It is a D-number.

It is a Duffinian number.

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 (109507) 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, 18232 + ... + 18237.

It is an arithmetic number, because the mean of its divisors is an integer number (36470).

2¹⁰⁹⁴⁰⁷ is an apocalyptic number.

109407 is a deficient number, since it is larger than the sum of its proper divisors (36473).

109407 is an equidigital number, since it uses as much as digits as its factorization.

109407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36472.

The product of its (nonzero) digits is 252, while the sum is 21.

The square root of 109407 is about 330.7672897975. The cubic root of 109407 is about 47.8279430229.

The spelling of 109407 in words is "one hundred nine thousand, four hundred seven".