682712981 has 8 divisors (see below), whose sum is σ = 699490080. Its totient is φ = 666080272.

The previous prime is 682712971. The next prime is 682712993. The reversal of 682712981 is 189217286.

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 682712981 - 2⁶ = 682712917 is a prime.

It is a super-2 number, since 2×682712981² = 932194028851812722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (682712951) 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, 26495 + ... + 45468.

It is an arithmetic number, because the mean of its divisors is an integer number (87436260).

Almost surely, 2^682712981 is an apocalyptic number.

It is an amenable number.

682712981 is a deficient number, since it is larger than the sum of its proper divisors (16777099).

682712981 is a wasteful number, since it uses less digits than its factorization.

682712981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72195.

The product of its digits is 96768, while the sum is 44.

The square root of 682712981 is about 26128.7768753151. The cubic root of 682712981 is about 880.5338449007.

The spelling of 682712981 in words is "six hundred eighty-two million, seven hundred twelve thousand, nine hundred eighty-one".