8739161 has 4 divisors (see below), whose sum is σ = 8761572. Its totient is φ = 8716752.

The previous prime is 8739127. The next prime is 8739163. The reversal of 8739161 is 1619378.

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 5953600 + 2785561 = 2440^2 + 1669^2 .

It is a cyclic number.

It is not a de Polignac number, because 8739161 - 2⁶ = 8739097 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8739163) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10610 + ... + 11403.

It is an arithmetic number, because the mean of its divisors is an integer number (2190393).

Almost surely, 2^8739161 is an apocalyptic number.

It is an amenable number.

8739161 is a deficient number, since it is larger than the sum of its proper divisors (22411).

8739161 is a wasteful number, since it uses less digits than its factorization.

8739161 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22410.

The product of its digits is 9072, while the sum is 35.

The square root of 8739161 is about 2956.2071984217. The cubic root of 8739161 is about 205.9791429539.

The spelling of 8739161 in words is "eight million, seven hundred thirty-nine thousand, one hundred sixty-one".