213473433 has 8 divisors (see below), whose sum is σ = 285177568. Its totient is φ = 142042464.

The previous prime is 213473423. The next prime is 213473443. The reversal of 213473433 is 334374312.

213473433 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213473423) and next prime (213473443).

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

It is not a de Polignac number, because 213473433 - 2¹⁰ = 213472409 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 213473433.

It is not an unprimeable number, because it can be changed into a prime (213473413) 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, 66460 + ... + 69597.

It is an arithmetic number, because the mean of its divisors is an integer number (35647196).

Almost surely, 2^213473433 is an apocalyptic number.

It is an amenable number.

213473433 is a deficient number, since it is larger than the sum of its proper divisors (71704135).

213473433 is a wasteful number, since it uses less digits than its factorization.

213473433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136583.

The product of its digits is 18144, while the sum is 30.

The square root of 213473433 is about 14610.7300638948. The cubic root of 213473433 is about 597.6514049415.

The spelling of 213473433 in words is "two hundred thirteen million, four hundred seventy-three thousand, four hundred thirty-three".