828977213 has 2 divisors, whose sum is σ = 828977214. Its totient is φ = 828977212.

The previous prime is 828977203. The next prime is 828977287. The reversal of 828977213 is 312779828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 759388249 + 69588964 = 27557^2 + 8342^2 .

It is a cyclic number.

It is not a de Polignac number, because 828977213 - 2⁴ = 828977197 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828977203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414488606 + 414488607.

It is an arithmetic number, because the mean of its divisors is an integer number (414488607).

Almost surely, 2^828977213 is an apocalyptic number.

It is an amenable number.

828977213 is a deficient number, since it is larger than the sum of its proper divisors (1).

828977213 is an equidigital number, since it uses as much as digits as its factorization.

828977213 is an evil number, because the sum of its binary digits is even.

The product of its digits is 338688, while the sum is 47.

The square root of 828977213 is about 28791.9643824453. The cubic root of 828977213 is about 939.3934569793.

The spelling of 828977213 in words is "eight hundred twenty-eight million, nine hundred seventy-seven thousand, two hundred thirteen".