8439081 has 8 divisors (see below), whose sum is σ = 12859584. Its totient is φ = 4822320.

The previous prime is 8439073. The next prime is 8439103. The reversal of 8439081 is 1809348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 8439081 - 2³ = 8439073 is a prime.

It is a super-2 number, since 2×8439081² = 142436176249122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8439061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 200910 + ... + 200951.

It is an arithmetic number, because the mean of its divisors is an integer number (1607448).

Almost surely, 2^8439081 is an apocalyptic number.

It is an amenable number.

8439081 is a deficient number, since it is larger than the sum of its proper divisors (4420503).

8439081 is a wasteful number, since it uses less digits than its factorization.

8439081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 401871.

The product of its (nonzero) digits is 6912, while the sum is 33.

The square root of 8439081 is about 2905.0096385382. The cubic root of 8439081 is about 203.5940359890.

The spelling of 8439081 in words is "eight million, four hundred thirty-nine thousand, eighty-one".