681296349 has 8 divisors (see below), whose sum is σ = 927722880. Its totient is φ = 444533696.

The previous prime is 681296347. The next prime is 681296351. The reversal of 681296349 is 943692186.

It is an interprime number because it is at equal distance from previous prime (681296347) and next prime (681296351).

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

It is a cyclic number.

It is not a de Polignac number, because 681296349 - 2¹ = 681296347 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 681296298 and 681296307.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681296347) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2415804 + ... + 2416085.

It is an arithmetic number, because the mean of its divisors is an integer number (115965360).

Almost surely, 2^681296349 is an apocalyptic number.

It is an amenable number.

681296349 is a deficient number, since it is larger than the sum of its proper divisors (246426531).

681296349 is a wasteful number, since it uses less digits than its factorization.

681296349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4831939.

The product of its digits is 559872, while the sum is 48.

The square root of 681296349 is about 26101.6541429849. The cubic root of 681296349 is about 879.9243861512.

The spelling of 681296349 in words is "six hundred eighty-one million, two hundred ninety-six thousand, three hundred forty-nine".