213322986 has 48 divisors (see below), whose sum is σ = 473091840. Its totient is φ = 69444960.

The previous prime is 213322981. The next prime is 213323029. The reversal of 213322986 is 689223312.

It is a self number, because there is not a number n which added to its sum of digits gives 213322986.

It is not an unprimeable number, because it can be changed into a prime (213322981) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 296335 + ... + 297053.

It is an arithmetic number, because the mean of its divisors is an integer number (9856080).

Almost surely, 2^213322986 is an apocalyptic number.

213322986 is an abundant number, since it is smaller than the sum of its proper divisors (259768854).

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

213322986 is a wasteful number, since it uses less digits than its factorization.

213322986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1091 (or 1088 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 213322986 is about 14605.5806457669. The cubic root of 213322986 is about 597.5109721788.

The spelling of 213322986 in words is "two hundred thirteen million, three hundred twenty-two thousand, nine hundred eighty-six".