219970 has 8 divisors (see below), whose sum is σ = 395964. Its totient is φ = 87984.

The previous prime is 219959. The next prime is 219971. The reversal of 219970 is 79912.

219970 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 219961 + 9 = 469^2 + 3^2 .

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

It is not an unprimeable number, because it can be changed into a prime (219971) by changing a digit.

219970 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10989 + ... + 11008.

2²¹⁹⁹⁷⁰ is an apocalyptic number.

219970 is a deficient number, since it is larger than the sum of its proper divisors (175994).

219970 is a wasteful number, since it uses less digits than its factorization.

219970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22004.

The product of its (nonzero) digits is 1134, while the sum is 28.

The square root of 219970 is about 469.0095947846. The cubic root of 219970 is about 60.3653632384.

The spelling of 219970 in words is "two hundred nineteen thousand, nine hundred seventy".