683460521 has 4 divisors (see below), whose sum is σ = 692112000. Its totient is φ = 674809044.

The previous prime is 683460473. The next prime is 683460523. The reversal of 683460521 is 125064386.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 683460521 - 2²⁶ = 616351657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (683460523) 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, 4325621 + ... + 4325778.

It is an arithmetic number, because the mean of its divisors is an integer number (173028000).

Almost surely, 2^683460521 is an apocalyptic number.

It is an amenable number.

683460521 is a deficient number, since it is larger than the sum of its proper divisors (8651479).

683460521 is an equidigital number, since it uses as much as digits as its factorization.

683460521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8651478.

The product of its (nonzero) digits is 34560, while the sum is 35.

The square root of 683460521 is about 26143.0778792399. The cubic root of 683460521 is about 880.8551093213.

The spelling of 683460521 in words is "six hundred eighty-three million, four hundred sixty thousand, five hundred twenty-one".