681924411 has 24 divisors (see below), whose sum is σ = 1130787840. Its totient is φ = 387915696.

The previous prime is 681924407. The next prime is 681924437. The reversal of 681924411 is 114429186.

It is not a de Polignac number, because 681924411 - 2² = 681924407 is a prime.

It is not an unprimeable number, because it can be changed into a prime (681924461) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10221 + ... + 38318.

It is an arithmetic number, because the mean of its divisors is an integer number (47116160).

Almost surely, 2^681924411 is an apocalyptic number.

681924411 is a deficient number, since it is larger than the sum of its proper divisors (448863429).

681924411 is a wasteful number, since it uses less digits than its factorization.

681924411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48775 (or 48772 counting only the distinct ones).

The product of its digits is 13824, while the sum is 36.

The square root of 681924411 is about 26113.6824480961. The cubic root of 681924411 is about 880.1946930623.

The spelling of 681924411 in words is "six hundred eighty-one million, nine hundred twenty-four thousand, four hundred eleven".