681468337 has 8 divisors (see below), whose sum is σ = 748411200. Its totient is φ = 615357360.

The previous prime is 681468317. The next prime is 681468371. The reversal of 681468337 is 733864186.

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 681468337 - 2⁷ = 681468209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (681468317) 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, 206253 + ... + 209530.

It is an arithmetic number, because the mean of its divisors is an integer number (93551400).

Almost surely, 2^681468337 is an apocalyptic number.

It is an amenable number.

681468337 is a deficient number, since it is larger than the sum of its proper divisors (66942863).

681468337 is a wasteful number, since it uses less digits than its factorization.

681468337 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415943.

The product of its digits is 580608, while the sum is 46.

The square root of 681468337 is about 26104.9485155593. The cubic root of 681468337 is about 879.9984232926.

The spelling of 681468337 in words is "six hundred eighty-one million, four hundred sixty-eight thousand, three hundred thirty-seven".