683464981 has 4 divisors (see below), whose sum is σ = 685987264. Its totient is φ = 680942700.

The previous prime is 683464973. The next prime is 683465009. The reversal of 683464981 is 189464386.

683464981 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 683464981 - 2³ = 683464973 is a prime.

It is a super-2 number, since 2×683464981² = 934248760506660722, 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 (683464921) 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, 1260735 + ... + 1261276.

It is an arithmetic number, because the mean of its divisors is an integer number (171496816).

Almost surely, 2^683464981 is an apocalyptic number.

It is an amenable number.

683464981 is a deficient number, since it is larger than the sum of its proper divisors (2522283).

683464981 is a wasteful number, since it uses less digits than its factorization.

683464981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2522282.

The product of its digits is 995328, while the sum is 49.

The square root of 683464981 is about 26143.1631789269. The cubic root of 683464981 is about 880.8570253574.

The spelling of 683464981 in words is "six hundred eighty-three million, four hundred sixty-four thousand, nine hundred eighty-one".