802217828 has 24 divisors (see below), whose sum is σ = 1551094272. Its totient is φ = 361099904.

The previous prime is 802217827. The next prime is 802217833. The reversal of 802217828 is 828712208.

It is a super-2 number, since 2×802217828² = 1287106887122075168, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 802217791 and 802217800.

It is not an unprimeable number, because it can be changed into a prime (802217821) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 254900 + ... + 258027.

It is an arithmetic number, because the mean of its divisors is an integer number (64628928).

Almost surely, 2^802217828 is an apocalyptic number.

It is an amenable number.

802217828 is a deficient number, since it is larger than the sum of its proper divisors (748876444).

802217828 is a wasteful number, since it uses less digits than its factorization.

802217828 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 512971 (or 512969 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 38.

The square root of 802217828 is about 28323.4501429469. The cubic root of 802217828 is about 929.1748290095.

The spelling of 802217828 in words is "eight hundred two million, two hundred seventeen thousand, eight hundred twenty-eight".