8461881 has 32 divisors (see below), whose sum is σ = 13219200. Its totient is φ = 5342400.

The previous prime is 8461877. The next prime is 8461891. The reversal of 8461881 is 1881648.

8461881 = T₃₄₃ + T₃₄₄ + ... + T₄₄₉.

It is not a de Polignac number, because 8461881 - 2² = 8461877 is a prime.

It is a super-2 number, since 2×8461881² = 143206860116322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8461811) 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, 79030 + ... + 79136.

It is an arithmetic number, because the mean of its divisors is an integer number (413100).

Almost surely, 2^8461881 is an apocalyptic number.

It is an amenable number.

8461881 is a deficient number, since it is larger than the sum of its proper divisors (4757319).

8461881 is a wasteful number, since it uses less digits than its factorization.

8461881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 246 (or 240 counting only the distinct ones).

The product of its digits is 12288, while the sum is 36.

The square root of 8461881 is about 2908.9312470390. The cubic root of 8461881 is about 203.7772222024. Note that the first 3 decimals are identical.

The spelling of 8461881 in words is "eight million, four hundred sixty-one thousand, eight hundred eighty-one".