828260057 has 2 divisors, whose sum is σ = 828260058. Its totient is φ = 828260056.

The previous prime is 828260051. The next prime is 828260093. The reversal of 828260057 is 750062828.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 653518096 + 174741961 = 25564^2 + 13219^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-828260057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 828260057.

It is not a weakly prime, because it can be changed into another prime (828260051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414130028 + 414130029.

It is an arithmetic number, because the mean of its divisors is an integer number (414130029).

Almost surely, 2^828260057 is an apocalyptic number.

It is an amenable number.

828260057 is a deficient number, since it is larger than the sum of its proper divisors (1).

828260057 is an equidigital number, since it uses as much as digits as its factorization.

828260057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 53760, while the sum is 38.

The square root of 828260057 is about 28779.5075878654. The cubic root of 828260057 is about 939.1224861134.

The spelling of 828260057 in words is "eight hundred twenty-eight million, two hundred sixty thousand, fifty-seven".