828277505 has 16 divisors (see below), whose sum is σ = 1086896448. Its totient is φ = 600936000.

The previous prime is 828277493. The next prime is 828277511. The reversal of 828277505 is 505772828.

It is not a de Polignac number, because 828277505 - 2¹⁸ = 828015361 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5270 + ... + 41040.

It is an arithmetic number, because the mean of its divisors is an integer number (67931028).

Almost surely, 2^828277505 is an apocalyptic number.

It is an amenable number.

828277505 is a deficient number, since it is larger than the sum of its proper divisors (258618943).

828277505 is a wasteful number, since it uses less digits than its factorization.

828277505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36208.

The product of its (nonzero) digits is 313600, while the sum is 44.

The square root of 828277505 is about 28779.8107186270. The cubic root of 828277505 is about 939.1290805374.

The spelling of 828277505 in words is "eight hundred twenty-eight million, two hundred seventy-seven thousand, five hundred five".