8739109 has 4 divisors (see below), whose sum is σ = 8952300. Its totient is φ = 8525920.

The previous prime is 8739097. The next prime is 8739113. The reversal of 8739109 is 9019378.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2873025 + 5866084 = 1695^2 + 2422^2 .

It is a cyclic number.

It is not a de Polignac number, because 8739109 - 2¹¹ = 8737061 is a prime.

It is a super-2 number, since 2×8739109² = 152744052227762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8739119) 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, 106534 + ... + 106615.

It is an arithmetic number, because the mean of its divisors is an integer number (2238075).

Almost surely, 2^8739109 is an apocalyptic number.

It is an amenable number.

8739109 is a deficient number, since it is larger than the sum of its proper divisors (213191).

8739109 is a wasteful number, since it uses less digits than its factorization.

8739109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 213190.

The product of its (nonzero) digits is 13608, while the sum is 37.

The square root of 8739109 is about 2956.1984033552. The cubic root of 8739109 is about 205.9787344121.

The spelling of 8739109 in words is "eight million, seven hundred thirty-nine thousand, one hundred nine".