213508873 has 16 divisors (see below), whose sum is σ = 224294400. Its totient is φ = 203005440.

The previous prime is 213508861. The next prime is 213508877. The reversal of 213508873 is 378805312.

213508873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 213508873 - 2¹³ = 213500681 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213508877) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 604665 + ... + 605017.

It is an arithmetic number, because the mean of its divisors is an integer number (14018400).

Almost surely, 2^213508873 is an apocalyptic number.

It is an amenable number.

213508873 is a deficient number, since it is larger than the sum of its proper divisors (10785527).

213508873 is a wasteful number, since it uses less digits than its factorization.

213508873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 672.

The product of its (nonzero) digits is 40320, while the sum is 37.

The square root of 213508873 is about 14611.9428208572. The cubic root of 213508873 is about 597.6844763383.

The spelling of 213508873 in words is "two hundred thirteen million, five hundred eight thousand, eight hundred seventy-three".