876423321 has 20 divisors (see below), whose sum is σ = 1386240372. Its totient is φ = 549911808.

The previous prime is 876423313. The next prime is 876423323. The reversal of 876423321 is 123324678.

It is a happy number.

876423321 is a `hidden beast` number, since 8 + 7 + 642 + 3 + 3 + 2 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 455352921 + 421070400 = 21339^2 + 20520^2 .

It is not a de Polignac number, because 876423321 - 2³ = 876423313 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (876423323) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 316860 + ... + 319613.

Almost surely, 2^876423321 is an apocalyptic number.

876423321 is a gapful number since it is divisible by the number (81) formed by its first and last digit.

It is an amenable number.

876423321 is a deficient number, since it is larger than the sum of its proper divisors (509817051).

876423321 is a wasteful number, since it uses less digits than its factorization.

876423321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 636502 (or 636493 counting only the distinct ones).

The product of its digits is 48384, while the sum is 36.

The square root of 876423321 is about 29604.4476557155. The cubic root of 876423321 is about 956.9839228439.

Adding to 876423321 its reverse (123324678), we get a palindrome (999747999).

The spelling of 876423321 in words is "eight hundred seventy-six million, four hundred twenty-three thousand, three hundred twenty-one".