8839681 has 4 divisors (see below), whose sum is σ = 9124864. Its totient is φ = 8554500.

The previous prime is 8839669. The next prime is 8839687. The reversal of 8839681 is 1869388.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 8839681 - 2¹⁹ = 8315393 is a prime.

It is a super-2 number, since 2×8839681² = 156279920363522, which contains 22 as substring.

It is a Duffinian number.

8839681 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (8839687) 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, 142545 + ... + 142606.

It is an arithmetic number, because the mean of its divisors is an integer number (2281216).

Almost surely, 2^8839681 is an apocalyptic number.

It is an amenable number.

8839681 is a deficient number, since it is larger than the sum of its proper divisors (285183).

8839681 is a wasteful number, since it uses less digits than its factorization.

8839681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285182.

The product of its digits is 82944, while the sum is 43.

The square root of 8839681 is about 2973.1601033244. The cubic root of 8839681 is about 206.7658753072.

The spelling of 8839681 in words is "eight million, eight hundred thirty-nine thousand, six hundred eighty-one".