213573671 has 4 divisors (see below), whose sum is σ = 214767000. Its totient is φ = 212380344.

The previous prime is 213573637. The next prime is 213573673. The reversal of 213573671 is 176375312.

213573671 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a cyclic number.

It is not a de Polignac number, because 213573671 - 2¹⁰ = 213572647 is a prime.

It is a super-2 number, since 2×213573671² = 91227425888832482, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213573673) 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, 596396 + ... + 596753.

It is an arithmetic number, because the mean of its divisors is an integer number (53691750).

Almost surely, 2^213573671 is an apocalyptic number.

213573671 is a deficient number, since it is larger than the sum of its proper divisors (1193329).

213573671 is a wasteful number, since it uses less digits than its factorization.

213573671 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1193328.

The product of its digits is 26460, while the sum is 35.

The square root of 213573671 is about 14614.1599484883. The cubic root of 213573671 is about 597.7449341557.

The spelling of 213573671 in words is "two hundred thirteen million, five hundred seventy-three thousand, six hundred seventy-one".