828415256 has 8 divisors (see below), whose sum is σ = 1553278620. Its totient is φ = 414207624.

The previous prime is 828415249. The next prime is 828415261. The reversal of 828415256 is 652514828.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51775946 + ... + 51775961.

Almost surely, 2^828415256 is an apocalyptic number.

It is an amenable number.

828415256 is a deficient number, since it is larger than the sum of its proper divisors (724863364).

828415256 is a wasteful number, since it uses less digits than its factorization.

828415256 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103551913 (or 103551909 counting only the distinct ones).

The product of its digits is 153600, while the sum is 41.

The square root of 828415256 is about 28782.2038072139. The cubic root of 828415256 is about 939.1811399009.

The spelling of 828415256 in words is "eight hundred twenty-eight million, four hundred fifteen thousand, two hundred fifty-six".