213488782 has 16 divisors (see below), whose sum is σ = 349025040. Its totient is φ = 97345152.

The previous prime is 213488777. The next prime is 213488789. The reversal of 213488782 is 287884312.

213488782 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 (213488789) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47307 + ... + 51622.

It is an arithmetic number, because the mean of its divisors is an integer number (21814065).

Almost surely, 2^213488782 is an apocalyptic number.

213488782 is a deficient number, since it is larger than the sum of its proper divisors (135536258).

213488782 is a wasteful number, since it uses less digits than its factorization.

213488782 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99027.

The product of its digits is 172032, while the sum is 43.

The square root of 213488782 is about 14611.2553191025. The cubic root of 213488782 is about 597.6657285530.

The spelling of 213488782 in words is "two hundred thirteen million, four hundred eighty-eight thousand, seven hundred eighty-two".