676702221 has 16 divisors (see below), whose sum is σ = 1028833344. Its totient is φ = 391935744.

The previous prime is 676702217. The next prime is 676702231. The reversal of 676702221 is 122207676.

It is not a de Polignac number, because 676702221 - 2² = 676702217 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (676702231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 509671 + ... + 510996.

It is an arithmetic number, because the mean of its divisors is an integer number (64302084).

Almost surely, 2^676702221 is an apocalyptic number.

It is an amenable number.

676702221 is a deficient number, since it is larger than the sum of its proper divisors (352131123).

676702221 is a wasteful number, since it uses less digits than its factorization.

676702221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1020700.

The product of its (nonzero) digits is 14112, while the sum is 33.

The square root of 676702221 is about 26013.5007448056. The cubic root of 676702221 is about 877.9420838782.

Adding to 676702221 its reverse (122207676), we get a palindrome (798909897).

The spelling of 676702221 in words is "six hundred seventy-six million, seven hundred two thousand, two hundred twenty-one".