217256482 has 8 divisors (see below), whose sum is σ = 340053696. Its totient is φ = 103905252.

The previous prime is 217256477. The next prime is 217256491. The reversal of 217256482 is 284652712.

It is a happy number.

217256482 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2361438 + ... + 2361529.

It is an arithmetic number, because the mean of its divisors is an integer number (42506712).

Almost surely, 2^217256482 is an apocalyptic number.

217256482 is a deficient number, since it is larger than the sum of its proper divisors (122797214).

217256482 is a wasteful number, since it uses less digits than its factorization.

217256482 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4722992.

The product of its digits is 53760, while the sum is 37.

The square root of 217256482 is about 14739.6228581331. The cubic root of 217256482 is about 601.1611606529.

The spelling of 217256482 in words is "two hundred seventeen million, two hundred fifty-six thousand, four hundred eighty-two".