213957339 has 16 divisors (see below), whose sum is σ = 298758912. Its totient is φ = 135942048.

The previous prime is 213957313. The next prime is 213957349. The reversal of 213957339 is 933759312.

It is not a de Polignac number, because 213957339 - 2⁸ = 213957083 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 213957339.

It is not an unprimeable number, because it can be changed into a prime (213957349) 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, 14049 + ... + 25005.

It is an arithmetic number, because the mean of its divisors is an integer number (18672432).

Almost surely, 2^213957339 is an apocalyptic number.

213957339 is a deficient number, since it is larger than the sum of its proper divisors (84801573).

213957339 is a wasteful number, since it uses less digits than its factorization.

213957339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11266.

The product of its digits is 153090, while the sum is 42.

The square root of 213957339 is about 14627.2806426895. The cubic root of 213957339 is about 598.1026536748.

The spelling of 213957339 in words is "two hundred thirteen million, nine hundred fifty-seven thousand, three hundred thirty-nine".