683434553 has 4 divisors (see below), whose sum is σ = 683864100. Its totient is φ = 683005008.

The previous prime is 683434517. The next prime is 683434559. The reversal of 683434553 is 355434386.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 59783824 + 623650729 = 7732^2 + 24973^2 .

It is a cyclic number.

It is not a de Polignac number, because 683434553 - 2¹⁸ = 683172409 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 683434553.

It is not an unprimeable number, because it can be changed into a prime (683434559) 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, 212378 + ... + 215571.

It is an arithmetic number, because the mean of its divisors is an integer number (170966025).

Almost surely, 2^683434553 is an apocalyptic number.

It is an amenable number.

683434553 is a deficient number, since it is larger than the sum of its proper divisors (429547).

683434553 is a wasteful number, since it uses less digits than its factorization.

683434553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429546.

The product of its digits is 518400, while the sum is 41.

The square root of 683434553 is about 26142.5812229780. The cubic root of 683434553 is about 880.8439531855.

The spelling of 683434553 in words is "six hundred eighty-three million, four hundred thirty-four thousand, five hundred fifty-three".