216532698 has 16 divisors (see below), whose sum is σ = 433759296. Its totient is φ = 72061920.

The previous prime is 216532697. The next prime is 216532703. The reversal of 216532698 is 896235612.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (216532691) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24811 + ... + 32382.

It is an arithmetic number, because the mean of its divisors is an integer number (27109956).

Almost surely, 2^216532698 is an apocalyptic number.

216532698 is an abundant number, since it is smaller than the sum of its proper divisors (217226598).

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

216532698 is a wasteful number, since it uses less digits than its factorization.

216532698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57829.

The product of its digits is 155520, while the sum is 42.

The square root of 216532698 is about 14715.0500508833. The cubic root of 216532698 is about 600.4928339692.

The spelling of 216532698 in words is "two hundred sixteen million, five hundred thirty-two thousand, six hundred ninety-eight".