681533414 has 16 divisors (see below), whose sum is σ = 1050705168. Its totient is φ = 331312032.

The previous prime is 681533407. The next prime is 681533429. The reversal of 681533414 is 414335186.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 135692 + ... + 140624.

It is an arithmetic number, because the mean of its divisors is an integer number (65669073).

Almost surely, 2^681533414 is an apocalyptic number.

681533414 is a deficient number, since it is larger than the sum of its proper divisors (369171754).

681533414 is a wasteful number, since it uses less digits than its factorization.

681533414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6839.

The product of its digits is 34560, while the sum is 35.

The square root of 681533414 is about 26106.1949353022. The cubic root of 681533414 is about 880.0264342955.

The spelling of 681533414 in words is "six hundred eighty-one million, five hundred thirty-three thousand, four hundred fourteen".