213969396 has 12 divisors (see below), whose sum is σ = 499261952. Its totient is φ = 71323128.

The previous prime is 213969373. The next prime is 213969397. The reversal of 213969396 is 693969312.

It is a happy number.

213969396 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213969397) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8915380 + ... + 8915403.

Almost surely, 2^213969396 is an apocalyptic number.

It is an amenable number.

213969396 is an abundant number, since it is smaller than the sum of its proper divisors (285292556).

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

213969396 is a wasteful number, since it uses less digits than its factorization.

213969396 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17830790 (or 17830788 counting only the distinct ones).

The product of its digits is 472392, while the sum is 48.

The square root of 213969396 is about 14627.6927777418. The cubic root of 213969396 is about 598.1138882948.

The spelling of 213969396 in words is "two hundred thirteen million, nine hundred sixty-nine thousand, three hundred ninety-six".