213396764 has 24 divisors (see below), whose sum is σ = 435506400. Its totient is φ = 91455168.

The previous prime is 213396763. The next prime is 213396787. The reversal of 213396764 is 467693312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213396763) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76397 + ... + 79140.

It is an arithmetic number, because the mean of its divisors is an integer number (18146100).

Almost surely, 2^213396764 is an apocalyptic number.

It is an amenable number.

213396764 is an abundant number, since it is smaller than the sum of its proper divisors (222109636).

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

213396764 is a wasteful number, since it uses less digits than its factorization.

213396764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155562 (or 155546 counting only the distinct ones).

The product of its digits is 163296, while the sum is 41.

The square root of 213396764 is about 14608.1061058578. The cubic root of 213396764 is about 597.5798475248.

The spelling of 213396764 in words is "two hundred thirteen million, three hundred ninety-six thousand, seven hundred sixty-four".