213027898 has 4 divisors (see below), whose sum is σ = 319541850. Its totient is φ = 106513948.

The previous prime is 213027889. The next prime is 213027929. The reversal of 213027898 is 898720312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 183792249 + 29235649 = 13557^2 + 5407^2 .

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 213027898.

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 as a sum of consecutive naturals, namely, 53256973 + ... + 53256976.

Almost surely, 2^213027898 is an apocalyptic number.

213027898 is a deficient number, since it is larger than the sum of its proper divisors (106513952).

213027898 is a wasteful number, since it uses less digits than its factorization.

213027898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106513951.

The product of its (nonzero) digits is 48384, while the sum is 40.

The square root of 213027898 is about 14595.4752577640. The cubic root of 213027898 is about 597.2353343092.

The spelling of 213027898 in words is "two hundred thirteen million, twenty-seven thousand, eight hundred ninety-eight".