109387939 has 2 divisors, whose sum is σ = 109387940. Its totient is φ = 109387938.

The previous prime is 109387909. The next prime is 109387951. The reversal of 109387939 is 939783901.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109387939 - 2¹³ = 109379747 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 109387892 and 109387901.

It is not a weakly prime, because it can be changed into another prime (109387909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54693969 + 54693970.

It is an arithmetic number, because the mean of its divisors is an integer number (54693970).

Almost surely, 2^109387939 is an apocalyptic number.

109387939 is a deficient number, since it is larger than the sum of its proper divisors (1).

109387939 is an equidigital number, since it uses as much as digits as its factorization.

109387939 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 367416, while the sum is 49.

The square root of 109387939 is about 10458.8689159010. The cubic root of 109387939 is about 478.2516531717.

The spelling of 109387939 in words is "one hundred nine million, three hundred eighty-seven thousand, nine hundred thirty-nine".