828726473 has 4 divisors (see below), whose sum is σ = 831185940. Its totient is φ = 826267008.

The previous prime is 828726461. The next prime is 828726529. The reversal of 828726473 is 374627828.

828726473 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.

It can be written as a sum of positive squares in 2 ways, for example, as 166590649 + 662135824 = 12907^2 + 25732^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-828726473 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (828726403) 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, 1229228 + ... + 1229901.

It is an arithmetic number, because the mean of its divisors is an integer number (207796485).

Almost surely, 2^828726473 is an apocalyptic number.

It is an amenable number.

828726473 is a deficient number, since it is larger than the sum of its proper divisors (2459467).

828726473 is a wasteful number, since it uses less digits than its factorization.

828726473 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2459466.

The product of its digits is 903168, while the sum is 47.

The square root of 828726473 is about 28787.6097132082. The cubic root of 828726473 is about 939.2987349275.

The spelling of 828726473 in words is "eight hundred twenty-eight million, seven hundred twenty-six thousand, four hundred seventy-three".