100828215 has 24 divisors (see below), whose sum is σ = 180797760. Its totient is φ = 51920064.

The previous prime is 100828183. The next prime is 100828229. The reversal of 100828215 is 512828001.

It is not a de Polignac number, because 100828215 - 2⁵ = 100828183 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 37327 + ... + 39936.

It is an arithmetic number, because the mean of its divisors is an integer number (7533240).

Almost surely, 2^100828215 is an apocalyptic number.

100828215 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

100828215 is a deficient number, since it is larger than the sum of its proper divisors (79969545).

100828215 is a wasteful number, since it uses less digits than its factorization.

100828215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77303 (or 77300 counting only the distinct ones).

The product of its (nonzero) digits is 1280, while the sum is 27.

The square root of 100828215 is about 10041.3253607280. The cubic root of 100828215 is about 465.4367731013.

The spelling of 100828215 in words is "one hundred million, eight hundred twenty-eight thousand, two hundred fifteen".