216610734 has 16 divisors (see below), whose sum is σ = 452057472. Its totient is φ = 69064248.

The previous prime is 216610663. The next prime is 216610763. The reversal of 216610734 is 437016612.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 784684 + ... + 784959.

It is an arithmetic number, because the mean of its divisors is an integer number (28253592).

Almost surely, 2^216610734 is an apocalyptic number.

216610734 is an abundant number, since it is smaller than the sum of its proper divisors (235446738).

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

216610734 is a wasteful number, since it uses less digits than its factorization.

216610734 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1569671.

The product of its (nonzero) digits is 6048, while the sum is 30.

The square root of 216610734 is about 14717.7013830285. The cubic root of 216610734 is about 600.5649623068.

The spelling of 216610734 in words is "two hundred sixteen million, six hundred ten thousand, seven hundred thirty-four".