213946808 has 16 divisors (see below), whose sum is σ = 401813880. Its totient is φ = 106796448.

The previous prime is 213946807. The next prime is 213946823. The reversal of 213946808 is 808649312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213946807) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16910 + ... + 26717.

Almost surely, 2^213946808 is an apocalyptic number.

It is an amenable number.

213946808 is a deficient number, since it is larger than the sum of its proper divisors (187867072).

213946808 is a wasteful number, since it uses less digits than its factorization.

213946808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44246 (or 44242 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 41.

The square root of 213946808 is about 14626.9206602073. The cubic root of 213946808 is about 598.0928406245.

The spelling of 213946808 in words is "two hundred thirteen million, nine hundred forty-six thousand, eight hundred eight".