213287339 has 4 divisors (see below), whose sum is σ = 213450120. Its totient is φ = 213124560.

The previous prime is 213287309. The next prime is 213287357. The reversal of 213287339 is 933782312.

It is a happy number.

213287339 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 a de Polignac number, because none of the positive numbers 2^k-213287339 is a prime.

It is a super-3 number, since 3×213287339³ (a number of 26 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213287309) 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, 79409 + ... + 82050.

It is an arithmetic number, because the mean of its divisors is an integer number (53362530).

Almost surely, 2^213287339 is an apocalyptic number.

213287339 is a deficient number, since it is larger than the sum of its proper divisors (162781).

213287339 is a wasteful number, since it uses less digits than its factorization.

213287339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 162780.

The product of its digits is 54432, while the sum is 38.

The square root of 213287339 is about 14604.3602735621. The cubic root of 213287339 is about 597.4776882829.

The spelling of 213287339 in words is "two hundred thirteen million, two hundred eighty-seven thousand, three hundred thirty-nine".