682654729 has 4 divisors (see below), whose sum is σ = 682728084. Its totient is φ = 682581376.

The previous prime is 682654723. The next prime is 682654741. The reversal of 682654729 is 927456286.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 927456286 = 2 ⋅463728143.

It can be written as a sum of positive squares in 2 ways, for example, as 298494729 + 384160000 = 17277^2 + 19600^2 .

It is a cyclic number.

It is not a de Polignac number, because 682654729 - 2¹³ = 682646537 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (682654723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20272 + ... + 42145.

It is an arithmetic number, because the mean of its divisors is an integer number (170682021).

Almost surely, 2^682654729 is an apocalyptic number.

It is an amenable number.

682654729 is a deficient number, since it is larger than the sum of its proper divisors (73355).

682654729 is a wasteful number, since it uses less digits than its factorization.

682654729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73354.

The product of its digits is 1451520, while the sum is 49.

The square root of 682654729 is about 26127.6621418756. The cubic root of 682654729 is about 880.5088005468.

The spelling of 682654729 in words is "six hundred eighty-two million, six hundred fifty-four thousand, seven hundred twenty-nine".