109387 has 2 divisors, whose sum is σ = 109388. Its totient is φ = 109386.

The previous prime is 109379. The next prime is 109391. The reversal of 109387 is 783901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109387 - 2³ = 109379 is a prime.

It is not a weakly prime, because it can be changed into another prime (109357) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54693 + 54694.

It is an arithmetic number, because the mean of its divisors is an integer number (54694).

2¹⁰⁹³⁸⁷ is an apocalyptic number.

109387 is a deficient number, since it is larger than the sum of its proper divisors (1).

109387 is an equidigital number, since it uses as much as digits as its factorization.

109387 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1512, while the sum is 28.

The square root of 109387 is about 330.7370556802. The cubic root of 109387 is about 47.8250284710.

It can be divided in two parts, 109 and 387, that added together give a triangular number (496 = T₃₁).

The spelling of 109387 in words is "one hundred nine thousand, three hundred eighty-seven".