213873759 has 12 divisors (see below), whose sum is σ = 337013352. Its totient is φ = 129620400.

The previous prime is 213873739. The next prime is 213873769. The reversal of 213873759 is 957378312.

It is a happy number.

It is not a de Polignac number, because 213873759 - 2¹³ = 213865567 is a prime.

It is a super-4 number, since 4×213873759⁴ (a number of 34 digits) contains 4444 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213873739) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1080072 + ... + 1080269.

It is an arithmetic number, because the mean of its divisors is an integer number (28084446).

Almost surely, 2^213873759 is an apocalyptic number.

213873759 is a deficient number, since it is larger than the sum of its proper divisors (123139593).

213873759 is a wasteful number, since it uses less digits than its factorization.

213873759 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2160358 (or 2160355 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 213873759 is about 14624.4233732479. The cubic root of 213873759 is about 598.0247628661.

The spelling of 213873759 in words is "two hundred thirteen million, eight hundred seventy-three thousand, seven hundred fifty-nine".