681071414 has 8 divisors (see below), whose sum is σ = 1021799928. Its totient is φ = 340471440.

The previous prime is 681071393. The next prime is 681071431. The reversal of 681071414 is 414170186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17567 + ... + 40874.

It is an arithmetic number, because the mean of its divisors is an integer number (127724991).

Almost surely, 2^681071414 is an apocalyptic number.

681071414 is a deficient number, since it is larger than the sum of its proper divisors (340728514).

681071414 is a wasteful number, since it uses less digits than its factorization.

681071414 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64270.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 681071414 is about 26097.3449607427. The cubic root of 681071414 is about 879.8275376562.

The spelling of 681071414 in words is "six hundred eighty-one million, seventy-one thousand, four hundred fourteen".