676638263 has 4 divisors (see below), whose sum is σ = 773300880. Its totient is φ = 579975648.

The previous prime is 676638257. The next prime is 676638269. The reversal of 676638263 is 362836676.

676638263 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.

It is an interprime number because it is at equal distance from previous prime (676638257) and next prime (676638269).

It is not a de Polignac number, because 676638263 - 2¹⁶ = 676572727 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676638269) 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, 48331298 + ... + 48331311.

It is an arithmetic number, because the mean of its divisors is an integer number (193325220).

Almost surely, 2^676638263 is an apocalyptic number.

676638263 is a deficient number, since it is larger than the sum of its proper divisors (96662617).

676638263 is an equidigital number, since it uses as much as digits as its factorization.

676638263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96662616.

The product of its digits is 1306368, while the sum is 47.

The square root of 676638263 is about 26012.2713925562. The cubic root of 676638263 is about 877.9144236621.

The spelling of 676638263 in words is "six hundred seventy-six million, six hundred thirty-eight thousand, two hundred sixty-three".