213927790 has 8 divisors (see below), whose sum is σ = 385070040. Its totient is φ = 85571112.

The previous prime is 213927781. The next prime is 213927799. The reversal of 213927790 is 97729312.

It is an interprime number because it is at equal distance from previous prime (213927781) and next prime (213927799).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213927799) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10696380 + ... + 10696399.

It is an arithmetic number, because the mean of its divisors is an integer number (48133755).

Almost surely, 2^213927790 is an apocalyptic number.

213927790 is a deficient number, since it is larger than the sum of its proper divisors (171142250).

213927790 is a wasteful number, since it uses less digits than its factorization.

213927790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21392786.

The product of its (nonzero) digits is 47628, while the sum is 40.

The square root of 213927790 is about 14626.2705431015. The cubic root of 213927790 is about 598.0751183585.

It can be divided in two parts, 2139 and 27790, that added together give a square (29929 = 173²).

The spelling of 213927790 in words is "two hundred thirteen million, nine hundred twenty-seven thousand, seven hundred ninety".