8610921044 has 24 divisors (see below), whose sum is σ = 16601802336. Its totient is φ = 3875300000.

The previous prime is 8610921041. The next prime is 8610921047. The reversal of 8610921044 is 4401290168.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (8610921041) and next prime (8610921047).

It is a super-2 number, since 2×8610921044² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 8610920995 and 8610921013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (8610921041) 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, 964382 + ... + 973269.

It is an arithmetic number, because the mean of its divisors is an integer number (691741764).

Almost surely, 2^8610921044 is an apocalyptic number.

It is an amenable number.

8610921044 is a deficient number, since it is larger than the sum of its proper divisors (7990881292).

8610921044 is a wasteful number, since it uses less digits than its factorization.

8610921044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1937767 (or 1937765 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 35.

The square root of 8610921044 is about 92795.0485963556. The cubic root of 8610921044 is about 2049.6664969270. Note that the first 3 decimals are identical.

The spelling of 8610921044 in words is "eight billion, six hundred ten million, nine hundred twenty-one thousand, forty-four".