217072848 has 20 divisors (see below), whose sum is σ = 560771648. Its totient is φ = 72357600.

The previous prime is 217072841. The next prime is 217072861. The reversal of 217072848 is 848270712.

It is a super-2 number, since 2×217072848² = 94241242677662208, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (217072841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2261128 + ... + 2261223.

Almost surely, 2^217072848 is an apocalyptic number.

It is an amenable number.

217072848 is an abundant number, since it is smaller than the sum of its proper divisors (343698800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

217072848 is a wasteful number, since it uses less digits than its factorization.

217072848 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4522362 (or 4522356 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 39.

The square root of 217072848 is about 14733.3922774085. The cubic root of 217072848 is about 600.9917376354.

The spelling of 217072848 in words is "two hundred seventeen million, seventy-two thousand, eight hundred forty-eight".