828931051 has 4 divisors (see below), whose sum is σ = 892694992. Its totient is φ = 765167112.

The previous prime is 828931039. The next prime is 828931073. The reversal of 828931051 is 150139828.

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

It is a cyclic number.

It is not a de Polignac number, because 828931051 - 2¹³ = 828922859 is a prime.

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 828931051.

It is not an unprimeable number, because it can be changed into a prime (828931001) 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, 31881951 + ... + 31881976.

It is an arithmetic number, because the mean of its divisors is an integer number (223173748).

Almost surely, 2^828931051 is an apocalyptic number.

828931051 is a deficient number, since it is larger than the sum of its proper divisors (63763941).

828931051 is a wasteful number, since it uses less digits than its factorization.

828931051 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63763940.

The product of its (nonzero) digits is 17280, while the sum is 37.

The square root of 828931051 is about 28791.1627240027. The cubic root of 828931051 is about 939.3760197949.

It can be divided in two parts, 8289 and 31051, that added together give a triangular number (39340 = T₂₈₀).

The spelling of 828931051 in words is "eight hundred twenty-eight million, nine hundred thirty-one thousand, fifty-one".