683505386 has 4 divisors (see below), whose sum is σ = 1025258082. Its totient is φ = 341752692.

The previous prime is 683505367. The next prime is 683505397.

683505386 is nontrivially palindromic in base 10.

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

It can be written as a sum of positive squares in only one way, i.e., 484836361 + 198669025 = 22019^2 + 14095^2 .

It is a super-2 number, since 2×683505386² = 934359225382017992, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170876345 + ... + 170876348.

Almost surely, 2^683505386 is an apocalyptic number.

683505386 is a deficient number, since it is larger than the sum of its proper divisors (341752696).

683505386 is a wasteful number, since it uses less digits than its factorization.

683505386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 341752695.

The product of its (nonzero) digits is 518400, while the sum is 44.

The square root of 683505386 is about 26143.9359316840. The cubic root of 683505386 is about 880.8743831484.

The spelling of 683505386 in words is "six hundred eighty-three million, five hundred five thousand, three hundred eighty-six".