828036157 has 4 divisors (see below), whose sum is σ = 891731260. Its totient is φ = 764341056.

The previous prime is 828036067. The next prime is 828036161. The reversal of 828036157 is 751630828.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53304601 + 774731556 = 7301^2 + 27834^2 .

It is a cyclic number.

It is not a de Polignac number, because 828036157 - 2⁷ = 828036029 is a prime.

It is a super-4 number, since 4×828036157⁴ (a number of 37 digits) contains 4444 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (828036457) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31847532 + ... + 31847557.

It is an arithmetic number, because the mean of its divisors is an integer number (222932815).

Almost surely, 2^828036157 is an apocalyptic number.

It is an amenable number.

828036157 is a deficient number, since it is larger than the sum of its proper divisors (63695103).

828036157 is a wasteful number, since it uses less digits than its factorization.

828036157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63695102.

The product of its (nonzero) digits is 80640, while the sum is 40.

The square root of 828036157 is about 28775.6174043234. The cubic root of 828036157 is about 939.0378554982.

The spelling of 828036157 in words is "eight hundred twenty-eight million, thirty-six thousand, one hundred fifty-seven".