216574473 has 8 divisors (see below), whose sum is σ = 292245408. Its totient is φ = 142643264.

The previous prime is 216574459. The next prime is 216574481. The reversal of 216574473 is 374475612.

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 216574473 - 2¹⁷ = 216443401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (216574433) 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, 434640 + ... + 435137.

It is an arithmetic number, because the mean of its divisors is an integer number (36530676).

Almost surely, 2^216574473 is an apocalyptic number.

It is an amenable number.

216574473 is a deficient number, since it is larger than the sum of its proper divisors (75670935).

216574473 is an equidigital number, since it uses as much as digits as its factorization.

216574473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869863.

The product of its digits is 141120, while the sum is 39.

The square root of 216574473 is about 14716.4694475271. The cubic root of 216574473 is about 600.5314485761.

The spelling of 216574473 in words is "two hundred sixteen million, five hundred seventy-four thousand, four hundred seventy-three".