215696982 has 16 divisors (see below), whose sum is σ = 441916272. Its totient is φ = 70145280.

The previous prime is 215696981. The next prime is 215697017. The reversal of 215696982 is 289696512.

215696982 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215696981) 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, 438163 + ... + 438654.

It is an arithmetic number, because the mean of its divisors is an integer number (27619767).

Almost surely, 2^215696982 is an apocalyptic number.

215696982 is an abundant number, since it is smaller than the sum of its proper divisors (226219290).

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

215696982 is a wasteful number, since it uses less digits than its factorization.

215696982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 876863.

The product of its digits is 466560, while the sum is 48.

The square root of 215696982 is about 14686.6259569719. The cubic root of 215696982 is about 599.7192964741.

The spelling of 215696982 in words is "two hundred fifteen million, six hundred ninety-six thousand, nine hundred eighty-two".