8831641 has 32 divisors (see below), whose sum is σ = 11610368. Its totient is φ = 6531840.

The previous prime is 8831633. The next prime is 8831663. The reversal of 8831641 is 1461388.

It is not a de Polignac number, because 8831641 - 2³ = 8831633 is a prime.

8831641 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8832641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 144751 + ... + 144811.

It is an arithmetic number, because the mean of its divisors is an integer number (362824).

Almost surely, 2^8831641 is an apocalyptic number.

It is an amenable number.

8831641 is a deficient number, since it is larger than the sum of its proper divisors (2778727).

8831641 is a wasteful number, since it uses less digits than its factorization.

8831641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161.

The product of its digits is 4608, while the sum is 31.

The square root of 8831641 is about 2971.8076990276. The cubic root of 8831641 is about 206.7031693530.

The spelling of 8831641 in words is "eight million, eight hundred thirty-one thousand, six hundred forty-one".