213399772 has 12 divisors (see below), whose sum is σ = 373929640. Its totient is φ = 106562736.

The previous prime is 213399761. The next prime is 213399779. The reversal of 213399772 is 277993312.

213399772 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213399779) 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, 30747 + ... + 37042.

Almost surely, 2^213399772 is an apocalyptic number.

It is an amenable number.

213399772 is a deficient number, since it is larger than the sum of its proper divisors (160529868).

213399772 is a wasteful number, since it uses less digits than its factorization.

213399772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68580 (or 68578 counting only the distinct ones).

The product of its digits is 142884, while the sum is 43.

The square root of 213399772 is about 14608.2090620308. The cubic root of 213399772 is about 597.5826553020.

The spelling of 213399772 in words is "two hundred thirteen million, three hundred ninety-nine thousand, seven hundred seventy-two".