213474673 has 4 divisors (see below), whose sum is σ = 213572340. Its totient is φ = 213377008.

The previous prime is 213474643. The next prime is 213474689. The reversal of 213474673 is 376474312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 173633329 + 39841344 = 13177^2 + 6312^2 .

It is a cyclic number.

It is not a de Polignac number, because 213474673 - 2⁹ = 213474161 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213474643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45478 + ... + 49951.

It is an arithmetic number, because the mean of its divisors is an integer number (53393085).

Almost surely, 2^213474673 is an apocalyptic number.

It is an amenable number.

213474673 is a deficient number, since it is larger than the sum of its proper divisors (97667).

213474673 is an equidigital number, since it uses as much as digits as its factorization.

213474673 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97666.

The product of its digits is 84672, while the sum is 37.

The square root of 213474673 is about 14610.7724983999. The cubic root of 213474673 is about 597.6525621290.

The spelling of 213474673 in words is "two hundred thirteen million, four hundred seventy-four thousand, six hundred seventy-three".