213929926 has 32 divisors (see below), whose sum is σ = 380543040. Its totient is φ = 88252416.

The previous prime is 213929917. The next prime is 213929941. The reversal of 213929926 is 629929312.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 184966 + ... + 186118.

It is an arithmetic number, because the mean of its divisors is an integer number (11891970).

Almost surely, 2^213929926 is an apocalyptic number.

213929926 is a deficient number, since it is larger than the sum of its proper divisors (166613114).

213929926 is a wasteful number, since it uses less digits than its factorization.

213929926 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1648.

The product of its digits is 104976, while the sum is 43.

The square root of 213929926 is about 14626.3435622168. The cubic root of 213929926 is about 598.0771088810.

The spelling of 213929926 in words is "two hundred thirteen million, nine hundred twenty-nine thousand, nine hundred twenty-six".