681407414 has 4 divisors (see below), whose sum is σ = 1022111124. Its totient is φ = 340703706.

The previous prime is 681407411. The next prime is 681407417. The reversal of 681407414 is 414704186.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (681407411) and next prime (681407417).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681407411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170351852 + ... + 170351855.

It is an arithmetic number, because the mean of its divisors is an integer number (255527781).

Almost surely, 2^681407414 is an apocalyptic number.

681407414 is a deficient number, since it is larger than the sum of its proper divisors (340703710).

681407414 is a wasteful number, since it uses less digits than its factorization.

681407414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 340703709.

The product of its (nonzero) digits is 21504, while the sum is 35.

The square root of 681407414 is about 26103.7816034382. The cubic root of 681407414 is about 879.9721986740.

The spelling of 681407414 in words is "six hundred eighty-one million, four hundred seven thousand, four hundred fourteen".