676826609 has 4 divisors (see below), whose sum is σ = 677854320. Its totient is φ = 675798900.

The previous prime is 676826603. The next prime is 676826617. The reversal of 676826609 is 906628676.

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 a de Polignac number, because none of the positive numbers 2^k-676826609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (676826603) 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, 512867 + ... + 514184.

It is an arithmetic number, because the mean of its divisors is an integer number (169463580).

Almost surely, 2^676826609 is an apocalyptic number.

It is an amenable number.

676826609 is a deficient number, since it is larger than the sum of its proper divisors (1027711).

676826609 is a wasteful number, since it uses less digits than its factorization.

676826609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1027710.

The product of its (nonzero) digits is 1306368, while the sum is 50.

The square root of 676826609 is about 26015.8914704071. The cubic root of 676826609 is about 877.9958735491.

The spelling of 676826609 in words is "six hundred seventy-six million, eight hundred twenty-six thousand, six hundred nine".