828138037 has 2 divisors, whose sum is σ = 828138038. Its totient is φ = 828138036.

The previous prime is 828138029. The next prime is 828138041. The reversal of 828138037 is 730831828.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 825183076 + 2954961 = 28726^2 + 1719^2 .

It is a cyclic number.

It is not a de Polignac number, because 828138037 - 2³ = 828138029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (828138737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 414069018 + 414069019.

It is an arithmetic number, because the mean of its divisors is an integer number (414069019).

Almost surely, 2^828138037 is an apocalyptic number.

It is an amenable number.

828138037 is a deficient number, since it is larger than the sum of its proper divisors (1).

828138037 is an equidigital number, since it uses as much as digits as its factorization.

828138037 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 64512, while the sum is 40.

The square root of 828138037 is about 28777.3875985990. The cubic root of 828138037 is about 939.0763663983.

The spelling of 828138037 in words is "eight hundred twenty-eight million, one hundred thirty-eight thousand, thirty-seven".