216070609 has 8 divisors (see below), whose sum is σ = 223464960. Its totient is φ = 208792896.

The previous prime is 216070597. The next prime is 216070633. The reversal of 216070609 is 906070612.

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

It is a cyclic number.

It is not a de Polignac number, because 216070609 - 2¹⁵ = 216037841 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (216070649) 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, 25384 + ... + 32809.

It is an arithmetic number, because the mean of its divisors is an integer number (27933120).

Almost surely, 2^216070609 is an apocalyptic number.

It is an amenable number.

216070609 is a deficient number, since it is larger than the sum of its proper divisors (7394351).

216070609 is an equidigital number, since it uses as much as digits as its factorization.

216070609 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58319.

The product of its (nonzero) digits is 4536, while the sum is 31.

The square root of 216070609 is about 14699.3404273797. The cubic root of 216070609 is about 600.0653715810.

The spelling of 216070609 in words is "two hundred sixteen million, seventy thousand, six hundred nine".