828271641 has 4 divisors (see below), whose sum is σ = 1104362192. Its totient is φ = 552181092.

The previous prime is 828271601. The next prime is 828271649. The reversal of 828271641 is 146172828.

It is a happy number.

828271641 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 828271641 - 2¹¹ = 828269593 is a prime.

It is a super-2 number, since 2×828271641² = 1372067822569665762, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 828271641.

It is not an unprimeable number, because it can be changed into a prime (828271649) 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, 138045271 + ... + 138045276.

It is an arithmetic number, because the mean of its divisors is an integer number (276090548).

Almost surely, 2^828271641 is an apocalyptic number.

It is an amenable number.

828271641 is a deficient number, since it is larger than the sum of its proper divisors (276090551).

828271641 is a wasteful number, since it uses less digits than its factorization.

828271641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276090550.

The product of its digits is 43008, while the sum is 39.

The square root of 828271641 is about 28779.7088414737. The cubic root of 828271641 is about 939.1268642649.

The spelling of 828271641 in words is "eight hundred twenty-eight million, two hundred seventy-one thousand, six hundred forty-one".