213769798 has 64 divisors (see below), whose sum is σ = 396576000. Its totient is φ = 85155840.

The previous prime is 213769789. The next prime is 213769799. The reversal of 213769798 is 897967312.

It is a Smith number, since the sum of its digits (52) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213769799) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 475878 + ... + 476326.

It is an arithmetic number, because the mean of its divisors is an integer number (6196500).

Almost surely, 2^213769798 is an apocalyptic number.

213769798 is a deficient number, since it is larger than the sum of its proper divisors (182806202).

213769798 is a wasteful number, since it uses less digits than its factorization.

213769798 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565.

The product of its digits is 1143072, while the sum is 52.

The square root of 213769798 is about 14620.8685788499. The cubic root of 213769798 is about 597.9278500441.

The spelling of 213769798 in words is "two hundred thirteen million, seven hundred sixty-nine thousand, seven hundred ninety-eight".