213797934 has 32 divisors (see below), whose sum is σ = 542979840. Its totient is φ = 61085016.

The previous prime is 213797923. The next prime is 213797959. The reversal of 213797934 is 439797312.

It is a Curzon number.

It is a zygodrome in base 3.

It is a self number, because there is not a number n which added to its sum of digits gives 213797934.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282424 + ... + 283179.

It is an arithmetic number, because the mean of its divisors is an integer number (16968120).

Almost surely, 2^213797934 is an apocalyptic number.

213797934 is an abundant number, since it is smaller than the sum of its proper divisors (329181906).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

213797934 is a wasteful number, since it uses less digits than its factorization.

213797934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565621 (or 565615 counting only the distinct ones).

The product of its digits is 285768, while the sum is 45.

The square root of 213797934 is about 14621.8307335299. The cubic root of 213797934 is about 597.9540816261.

The spelling of 213797934 in words is "two hundred thirteen million, seven hundred ninety-seven thousand, nine hundred thirty-four".