213832887 has 4 divisors (see below), whose sum is σ = 285110520. Its totient is φ = 142555256.

The previous prime is 213832867. The next prime is 213832889. The reversal of 213832887 is 788238312.

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 213832887 - 2¹⁴ = 213816503 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213832889) 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, 35638812 + ... + 35638817.

It is an arithmetic number, because the mean of its divisors is an integer number (71277630).

Almost surely, 2^213832887 is an apocalyptic number.

213832887 is a deficient number, since it is larger than the sum of its proper divisors (71277633).

213832887 is an equidigital number, since it uses as much as digits as its factorization.

213832887 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71277632.

The product of its digits is 129024, while the sum is 42.

The square root of 213832887 is about 14623.0259180513. The cubic root of 213832887 is about 597.9866655863.

The spelling of 213832887 in words is "two hundred thirteen million, eight hundred thirty-two thousand, eight hundred eighty-seven".